Groundwork construction and installation debugging
4.1 Construction of groundwork
Before installing, the user can select and layout the place according to the plane chart that our company offered (or inform our technician and erector go to the building site for guiding), line according to the layout size, make the groundwork well and per-remain the bolt holes; It is permit to install the equipments after the groundwork congealed.
User should have whole, reasonable planning to the place, the position of mixing plant should be convenient for transporting, should reserve the position of the materials field and the bitumen pot. The monitoring room should be in the place that is apt to observe the running situation of the complete machine, the aggregate feeder should be in the place where is easy to feeding.
According to the requests of our company at the same time, the needed place and equipments are as follows:
1. Offer the needed crane, crowbar, rope, etc for unloading temporarily and installing, 25 tons of crane is ok.
2. Offer the temporary storing place that the installation of small parts need, and require a special person to manage.
3. Offer the needed equipments. Just as the welding machine, temporary lighting, power electric junction box, etc.
4. Offer the accommodation for erectors.
5. Arrange 4-6 workers to cooperate with the work of installation and debugging.
6. Make sure 2 operators and 2 technicians to install corporately in advance in order to be familiar with the installation and debugging.
7. Arrange a principal to communicate and consult with our company in time in order to handle with various incidents that are unfavorable to install in time.
The installation of the equipment is mainly going on under the instructions of our technician.
4.2.1 The installation of the mixing plant and its parts
First install the width platform, railings and ladder of the hot aggregates storage and mixing layer; put the four braces on the bolts, hang the second layer (the mixing layer) to the braces and fix them well; then fix the anchor bolts, hang the three layer ( the hot aggregate storage layer) to the second layer and fix them well too; finally fix the closed round vibration sifter with the bolts; Now it is time to install the overflow pipe in turn from top to bottom and seal them. Notice to guarantee the upright degree of the mixing plant while installing.
Attentions: In the course of installation, should notice to install the elastic washer to every bolts and screw them tightly; the connections of parts and parts should be adjusted well and seal for preventing the dusts from overflowing.
4.2.2 The installation of hot aggregate elevator:
After fixing the mixing plant well, should install the attachments such as upper platform and railings, etc first, then wind up the upper of elevator with the crane, link with the medium shell and its underside from top to bottom, then take the mixing plant as the reference object to fix the hot aggregate elevator and fix each bolt well. When installing, the outlet of elevator should be connected with the entrance of the closed round vibration sifter directly and seal reliably in order to prevent from overflowing; it should be filled with the asbestos strings between the flange of shell.
4.2.3 The installation of the dry roller and burning system:
For the dry roller, should take the Mixing plant as the reference object to fix its position and burner. While installing, its outlet should be connected with the entrance of the hot aggregate elevator directly and seal reliably in order to prevent from overflowing
The position of burner should be close to the feeding outlet of dry roller, the fire outlet should be connect with the ignition mouth of dry roller directly, besides, should layout the place of the burning materials reasonably, as regards the coal burner, should also confirm the storing place of fuel for preventing being caught in the rain.
4.2.4 The installation of the filler elevator:
First install the attachments such as the upper platform and railings, etc of the elevator, then wind up the upper of elevator with the crane, link with the medium shell and its underside from top to bottom, and then take the mixing plant as the reference object to fix the hot aggregate elevator and fix each bolt well. When installing, the outlet of the hot aggregate elevator should be connected with the entrance of the ore powder interim bin directly and seal reliably in order to prevent from overflowing; it should be filled with the asbestos strings between the flange of shell.
4.2.5 The installation of the cold aggregate feeder system
After fixing the dry roller, can fix the gradient belt feeder, medium filter, aggregate feeder in turn. The connection should be accurate for guaranteeing the feeding passages of the cold aggregate are unblocked and leave a certain distance for throwing materials.
4.2.6. The installation of bitumen feeder system
Emplace the bitumen tank (if users choose the oil-unloading tank and heat preservation tank, should install them in turn); the concrete position is outside the roller. Just like this not only can shorten the length of the connecting pipeline, reduce the thermal losses, but also can make the bitumen easy to mix.
4.2.7 The installation of the water film dust-removing system
First of all, emplace the one-grade single-cylinder cyclone dust catcher. Should fix the underbed first, and then install the single- cylinder cyclone dust catcher.
Second, install the wet type dust-catcher. Should check whether every nozzle link reliably, link with the chimney, water film dust-catcher and the downside water fog dust-catcher in turn, and then connect with the pipe water inlet, at last hang it in the right position.
Third, Place air-introduced machine, connect with the pipelines of dust removing. The connection of the pipelines should be right.
Finally, Install water -supply system, the attachments and pipelines.
4.2.8 The installation of gas flow system:
Attention: While connecting the dust-remover and its pipelines, should fill with the asbestos strings in the flanges for preventing the dust from overflowing or leaking gas.
The installation: Confirm the connection of every component. Should daub the sealant on the joints, and wrap up with the raw material belt in order to ensure its sealed performance.
Attention: Should pay attention to cleaning. Before installing, every pipelines should be blow off, while joining and installing the attachments, should prevent the foreign matters or the dust from entering.
4.2.9 The installation of the monitoring room:
The monitoring room should be in the place where is apt to observe the running of the complete machine, also can observe the situation of vehicles, and can command the vehicles optionally.
4.2.10 The allocation of electric control circuitry:
Can allocate the electric control circuitry by electric engineer after installing all equipments, and dig out the cable trench in the allocation position, and make sure all the joints are reliable.
Check whether the installation is correct for every part, whether there is mistake, displacement and omission, whether the localization is firm.
Tips show as follows:
1. The fastening situation of the dry roller, the supported wheel, rolling rings and inner scraper.
2. Whether the bolts on the closed round vibration sifter, the bolts on the motor bracket and the transducer bolts are tightened.
3. Whether the bolts on the mixing arm and the bolts between the vanes are tightened.
4. Sealing performance of dust -remover’s pipeline.
5. Check the sealed situation of air hose, screw gate and every flange joints.
6. Check the fixed situation of the bitumen pipeline joints and flange connection bolts.
7. Check the fastness of the elevator running system, the connection of the medium parts, the fastness of the elevator shell; the elasticity of the elevator chain; if the chain is too loose, can tight it with the underside take-up device.
8. Check the operating parts. Rotate each part by hand, check whether the operation is normal, whether there is any impact, interference, stagnation, lean and other phenomenon, check the elasticity of the chain, belt, etc.
9. Check its lubricated situation; check whether the speeder, bearing, air flow, etc. are adding the oil according to the lubrication table.
10. Check whether the bitumen pipelines are unobstructed, the break-make direction of three-way valve is correct.
11. Check whether the bitumen tank and oil tank are dry, if have any condensed water, should make it clean.
12. Check whether there is the dangerous articles on the device, for instance the bolt, nut, spacer, cotton yarn, iron wire, etc., in order to avoid falling into the drive system and cause the accident and breakdown during the course of production.
Install all the parts well, connect the power line, go on testing run alone to every part, then carry on unloaded testing run, testing run of feeding so that confirm every system (parts) have no question and trouble and can run normally.
The method as follows:
1.Put through the mixer, closed vibration sifter, hot aggregate elevator, dry roller, the gradient belt feeder, medium filter, aggregate feeder in turn, then go on unloaded testing run and assign the special person to check all the systems, if have some problem should solve in time and then can carry on next step.
2. Check whether the fixed bolts in the mixer, the dry roller and the vibration sifter become loose.
3. Check the swing of the round vibration sifter and its sealed situation.
4. The tightening situation of the elevator’s chain and the rolling chain, the meshing situation of big sprocket and the chain.
5. Whether the dry roller runs steadily, whether there is unusual noise.
6. The tightening situation of the gradient belt feeder, the aggregate feeder’s conveyor belt, and the rotating feeder’s conveyor belt, whether there is the deflective phenomenon, the tightening situation of the bolts, etc.
8. Check the elasticity of air compressor’s belt, the operating, the highest output air pressure, working pressure, pipelines, check whether the air three-element runs normally, the machine runs normally.
9. Run unloaded the dust-catcher system, the asphalt feeder system and the ignition system, at this moment the air-blower, air-introduced machine, fuel pump, bitumen pump are all operating, check the operation situation of every part. Meanwhile, can carry on the test of ignition, burning time can't exceed one minute. Also can testing run the bitumen oil-suction pump and bitumen injection pump, observe whether the bitumen loop and the break-make of valves are correct, whether the bitumen can circulate normally, its operating time can't exceed half a minute.
10. After the unloaded running of every system are normal, and then can fill with the aggregates to test.