CN201154842Y - A viscous material high temperature conveyor - Google Patents

Abstract

A high-temperature conveyor for viscous materials, which includes a cantilever shell, a feeding hopper, a screw conveying body, a discharge pipe, a fixed slideway device, and a moving slideway device. The shaft is connected with the reducer, the reducer and the drive motor are connected through a belt transmission device, the movable slideway device is connected with the fixed slideway device through bolts, and the two ends of the screw conveyor are supported on the cantilever shell through sliding bearings; the screw body The pitch of the screw is 0.5 to 0.6 times the diameter of the helical blade; the cantilever shell is a circular body, and the distance between the blade and the shell of the helical body is 4mm to 6mm. The utility model has the advantages of simple structure, reliable operation, convenient maintenance and low manufacturing cost, and is especially suitable for the workplace where viscous powdery materials are transported into the drum dryer under high temperature in potash fertilizer production.

Description

A viscous material high temperature conveyor

technical field

The utility model relates to a viscous material high-temperature conveyor, in particular to a viscous material high-temperature conveyor suitable for conveying viscous powdery materials into a rotary drum dryer in the production of potassium fertilizer.

Background technique

Existing screw conveyors are generally used to transport non-viscous, non-caking materials.

CN 2685292Y discloses a viscous material conveyor, which adopts a shaftless spiral body and increases the pitch of the spiral body to reduce the probability of winding and agglomeration to complete the conveying of materials. This kind of viscous material conveyor is obviously not suitable for conveying viscous materials at high temperature, because the increase of the screw pitch will make the material dry and agglomerate at high temperature, which will increase the operating cost of the subsequent section of the product.

At present, the high-temperature screw machine on the market is only suitable for the occasions with very low speed (about 7r/min), short conveying distance and small conveying capacity (conveying length less than 2.5m and conveying capacity less than 10 tons). Furthermore, due to the problem of bearing lubrication, a water jacket must be installed on the outer layer of the casing, and a cooling water pipe is laid in the water jacket to reduce the temperature of the screw machine in the furnace to ensure the normal operation of the screw machine. The water supply pressure is not lower than 0.6~0.8MPa. This makes the structure of the equipment complex, and cannot meet the requirements when the output is large.

Utility model content

The purpose of the utility model is to overcome the above-mentioned defects of the prior art, and provide a viscous material high-temperature conveyor that will not block and agglomerate, has a relatively simple structure, low manufacturing cost, less failures, and is easy to maintain.

The technical scheme of the utility model is: it includes a cantilever housing, a feeding hopper, a screw conveying body, a discharge pipe, a fixed slideway device, and a moving slideway device. The shaft is connected with the reducer, the reducer and the driving motor are connected through a belt transmission device, the movable slideway device is connected with the fixed slideway device through bolts, and the two ends of the screw conveyor are supported on the cantilever through sliding bearings (self-lubricating method). on the shell.

The pitch of the spiral body is preferably 0.5-0.6 times the diameter of the spiral blade.

The shell should be circular, and the distance between the blades of the helix and the cantilever shell should be 4mm-6mm, which can prevent the material from sticking to the wall and reduce the phenomenon of material clogging.

The screw diameter and pitch of the conveyor, the type of reducer, and the power of the motor can be determined according to the maximum and minimum conveying volume of the material.

Cantilever shell and screw conveying body, discharge pipe, bearing seat and shaft sleeve are made of heat-resistant steel.

Due to the use of sliding bearings, it overcomes the disadvantages of using rolling bearings to set water jackets on the outer layer of the casing and lay cooling water pipes inside the water jackets, which makes the structure complicated.

Because the pitch of the spiral body is reduced, the conveying speed of the spiral body is increased, so that the material enters the high-temperature kiln quickly in a small range at high temperature.

The viscous material containing water enters the conveyor from the feeding hopper, and the driving motor drives the screw conveying body to advance the screw feeding through the belt transmission device and the reducer. It is related to the speed factor. When the relative speed of the material being thrown away from the helicoid increases, the cohesive force of the material also increases accordingly. That is to say, when the conveying speed of the viscous material exceeds a certain range, the material particles cannot get rid of the bondage of viscosity when they are thrown off the helicoid, and because the relative speed of the material particles from the helicoid is high, the dynamic viscous force is much greater than the static one. Viscous force, which affects the effect of conveying materials. The conveying speed that the utility model adopts is generally 20～50r/min.

Since the screw conveyor is driven by a reducer, and the reducer and the motor are connected by a belt, adjusting the transmission ratio of the belt drive can meet the requirements of adjusting the conveying speed and adjusting the conveying volume.

When the equipment needs to be overhauled, disassemble the connecting parts of the fixed slideway device and the movable slideway device, so that the equipment can be pulled out from the furnace (kiln) quickly, and the cooling speed can be accelerated to complete the maintenance work.

The utility model has the advantages of simple structure, reliable operation, convenient maintenance and low manufacturing cost; it is especially suitable for the workplace where viscous powdery materials are transported into the drum dryer under high temperature in potash fertilizer production.

Description of drawings

Fig. 1 is the structural assembly diagram of an embodiment of the utility model;

Fig. 2 is the top view of the embodiment shown in Fig. 1;

In the figure: 1. Drive motor; 2. Belt transmission device; 3. Fixed slideway baffle; 4. Fixed slideway device; 5. Shared base; 6. Reducer; 7. The first movable slideway device; 8. Coupling; 9. Second movable slideway device; 10. Outrigger of screw conveyor; 11. Discharge pipe; 12. Bolt; 13. First bearing seat; 14. First shaft sleeve; 15. Cantilever shell Flange; 16. Cantilever shell; 17. Screw conveying body; 18. Flange connecting dryer and screw machine; 19. Flange connecting screw machine and dryer; 20. Feeding hopper; 21. Second bearing seat; 22. The second shaft sleeve

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Referring to Figures 1 and 2, this embodiment includes a cantilever housing 16, a feed hopper 20, a screw conveyor 17, a discharge pipe 11, a fixed slideway device 4, a first movable slideway device 7, and a second movable slideway device 9. The feed hopper 20 is connected to the cantilever housing 16, the screw conveying body 17 is connected to the reducer 6 through the coupling 8, the reducer 6 is connected to the drive motor 1 through the belt transmission device 2, and the first movable slideway device 7. The second movable slideway device 9 is connected with the fixed slideway device 4 through bolts, and the two ends of the screw conveying body 17 are supported on the cantilever housing 16 through the first bearing seat 13 and the second bearing seat 21; the cantilever housing 16 The upper flange 15 is connected by bolts 12; the first bushing 14 and the second bushing 22 are installed in the first bearing seat 13 and the second bearing seat 21 respectively, and the first bushing 14 and the second bushing 22 are respectively It consists of two semi-circular rings; the cantilever shell 16 is welded with a flange 19 and connected with the flange 18 on the dryer with bolts. When overhauling, remove the bolts and pull out the screw conveyor.

The cantilever housing 16 of the present embodiment is welded with two supporting legs 10 near the part of the speed reducer 6, and they are welded with the second movable slideway device 9; the speed reducer 6 and the driving motor 1 are installed on the common base 5, and the common base 5 Connect with the first movable slideway device 7 with bolts.

With reference to Fig. 1, Fig. 2, be provided with fixed slideway baffle plate 3 at the two ends of fixed slideway device 4, to prevent this example from slipping out from the slideway; Fixed slideway device 4 can be welded on the steel platform or fixed slideway Road device 4 is welded on the concrete inner anchor rod.

When the equipment is overhauled, the connecting bolts of the first movable slideway device 7 and the second movable slideway device 9 and the fixed slideway device 4 can be disassembled, and the equipment can be easily extracted.

The viscous wet material is fed from the upper hopper 20 of the cantilever shell 16 of the screw conveyor, and the screw conveyor 17 pushes the material to the discharge pipe 11 at a certain speed, and enters the drying furnace (kiln) from the discharge port to complete the material entering The process of drying the system.

The transmission ratio of the belt transmission device 2 can be adjusted according to the amount of conveying volume, so as to meet the requirements of adjusting conveying speed and adjusting conveying quantity.

This embodiment is used in a large-scale potash fertilizer production device in Xinjiang to realize the rapid entry of materials into the high-temperature kiln at high temperature without being easily blocked. When the equipment needs to be overhauled, the connecting parts of the fixed slideway device and the movable slideway device can be disassembled, and the equipment can be quickly pulled out from the furnace (kiln) to speed up the cooling speed and complete the maintenance work.

Claims (3)

1. A high-temperature conveyor for viscous materials, which includes a cantilever housing, a feeding hopper, a screw conveying body, a discharge pipe, a fixed slideway device, and a moving slideway device. It is characterized in that the feeding hopper is connected to the cantilever housing , the screw conveying body is connected with the reducer through a coupling, the reducer and the driving motor are connected through a belt transmission device, the movable slideway device is connected with the fixed slideway device through bolts, and the two ends of the screw conveying body are supported by sliding bearings. on the cantilever housing. 2. The high-temperature conveyor for viscous materials according to claim 1, wherein the pitch of the spiral body is 0.5-0.6 times the diameter of the spiral blade. 3. The viscous material high-temperature conveyor according to claim 1 or 2, characterized in that, the cantilever shell is a circular body, and the distance between the blades of the spiral body and the shell is 4mm-6mm.

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