CN212943370U

CN212943370U - Multi-section drying system for phosphogypsum retarder

Info

Publication number: CN212943370U
Application number: CN202020675962.8U
Authority: CN
Inventors: 赵海峰; 赵金保; 曾宪超
Original assignee: Hubei Shiyu New Building Materials Co Ltd
Current assignee: Hubei Shiyu New Building Materials Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-04-13
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a multi-section drying system of ardealite retarder, including loader, feeder, milling machine, repulping pond, area filtering pond and centrifuge, loader one side fixed connection discharge gate, the discharge gate bottom is equipped with the feeder hopper, feeder hopper bottom fixed connection feeder, feeder and rubbing crusher pass through pipeline fixed connection, rubbing crusher bottom connection discharging pipe, the discharging pipe bottom is equipped with transport operation machine. The utility model discloses coagulant multi-section drying system connects the depositing reservoir through taking the filtering pond bottom at the during operation, and depositing reservoir bottom fixed connection presses the filtering pond, and the white fertilizer skin fortune machine of filtering pond bottom fixed connection, can transport the residue out, reduces the pollution to the environment, through the inside fixed connection servo motor of rubbing crusher, smashes the main shaft surface and is equipped with crushing cutter, can be convenient for smash massive ardealite, can make work efficiency higher, satisfies the user demand.

Description

Multi-section drying system for phosphogypsum retarder

Technical Field

The utility model relates to a relevant technical field of drying equipment specifically is a multi-section drying system of ardealite retarder.

Background

With the rapid development of the phosphate fertilizer industry in China, the discharge amount of the phosphogypsum is rapidly increased and exceeds 7000 million tons of emission amount per year, one purpose of the phosphogypsum is to be used as a cement retarder, the main component of the phosphogypsum is CaSO42H2O (70-90%), and the utilization rate of the phosphogypsum resource is less than 20%. In the comprehensive treatment and utilization of the phosphogypsum, the preparation of the cement retarder by using the phosphogypsum to replace natural gypsum for production is one of the main utilization ways of the current phosphogypsum, which is beneficial to the comprehensive treatment and utilization of industrial waste residues, reduces the land occupied by stacking the waste residues, protects the environment and reduces the cost of cement production enterprises, but contains P2O5 and other substances, can only reduce water-soluble impurities through external purification, and the preparation of the cement retarder by using the industrial solid waste phosphogypsum improves the utilization rate of the waste, reduces the influence of the waste on the ecological environment, reduces the cultivated land occupied by stacking the waste, saves resources and reduces the production cost, thus not better realizing the utilization value of the phosphogypsum.

The existing multi-section drying system for the phosphogypsum retarder has the following defects in use:

1. the existing calcining procedure adopts forward calcining and drying, the drying time is too long, the heat dissipation speed is high, and heat insulation supporting facilities are lacked, so that the utilization rate of the phosphogypsum in the drying preparation is not high;

2. the phosphogypsum is industrial solid waste directly discharged in the process of producing wet-process phosphoric acid by a sulfuric acid method in phosphorus chemical enterprises, and residues of the phosphogypsum can not only pollute underground water and surface water but also pollute the atmospheric environment. Therefore, a multi-section drying system for the phosphogypsum retarder is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multi-section drying system for phosphogypsum retarder, which aims to solve the problems that when the multi-section drying system for the phosphogypsum retarder in the background technology is used, the existing forward calcining and drying method with the calcining procedure is adopted, the drying time is too long, no residual heat utilization procedure is needed, and the utilization rate of the phosphogypsum by the natural drying preparation method is not high; the phosphogypsum is industrial solid waste discharged in the process of producing wet-process phosphoric acid by a sulfuric acid method in phosphorus chemical enterprises, and the stacking of the phosphogypsum not only occupies a large amount of land and capital, but also causes pollution to underground water, surface water and atmospheric environment.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multi-section drying system of ardealite retarder, includes loader, feeder, milling machine, repulping pond, takes filtering pond and centrifuge, loader one side fixed connection discharge gate, the discharge gate bottom is equipped with the feeder hopper, feeder hopper bottom fixed connection feeder, feeder and rubbing crusher pass through pipeline fixed connection, rubbing crusher bottom connection discharging pipe, the discharging pipe bottom is equipped with carries the fortune machine, carry fortune machine top lower extreme to be equipped with the milling machine, milling machine top fixed connection hopper, the milling machine passes through connecting pipe fixed connection with repulping pond, the connecting pipe is inside to be equipped with inhales the powder motor, repulping the pond right side and being equipped with the ground paste hole pond, the inside material pulp pump that is equipped with in ground paste hole pond, ground paste hole pond right side filtering pond connecting band.

Preferably, the bottom of the filter tank is connected with a clarification tank, the bottom of the clarification tank is fixedly connected with a filter pressing tank, and the bottom of the filter pressing tank is fixedly connected with a white fertilizer skin conveyor.

Preferably, take filtering pond right side fixed connection centrifuge, the modified pond of centrifuge right side fixed connection, modified bottom of the pool portion fixed connection stoving case No. one, stoving bottom of the case portion is equipped with No. two stoving casees and sets up the finished product collecting box in No. two stoving bottom of the case portions.

Preferably, the inside of the pulverizer is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a pulverizing main shaft, the left end of the pulverizing main shaft is fixedly connected with a finished product collecting box, and a pulverizing cutter is arranged on the outer surface of the pulverizing main shaft.

Preferably, a filter screen is arranged in the clarification tank.

Preferably, the outer sides of the first drying box and the second drying box are both provided with heat insulating layers.

The utility model provides a multi-section drying system of ardealite retarder possesses following beneficial effect: 1. a multi-section drying system for ardealite retarder is characterized in that during working, a clarifying tank is connected to the bottom of a filter tank, the bottom of the clarifying tank is fixedly connected with a filter pressing tank, and a white fertilizer skin conveyor is fixedly connected to the bottom of the filter pressing tank, so that residues can be conveyed out, and the pollution to the environment is reduced.

2. Through the inside fixed connection servo motor of rubbing crusher, main shaft and the crushing main shaft left end fixed connection finished product collecting box are smashed to servo motor output fixed connection, it is equipped with crushing cutter to smash the main shaft surface, can be convenient for smash bold ardealite, utilize and take filtering pond right side fixed connection centrifuge, the modified pond of centrifuge right side fixed connection, modified bottom of the pool fixed connection stoving case No. one, with stoving bottom of the case portion No. two stoving cases, can carry out the multi-section to the retarder and dry, the utilization all is equipped with the heat preservation through stoving case and No. two stoving case outsides, can reduce thermal scattering and disappearing. Through implementing according to the utility model discloses the scheme, can be in order to solve the problem of mentioning in the background art.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of the pulverizer of the embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of a clarification tank according to an embodiment of the present invention;

fig. 4 is a schematic view of an external structure of a drying box according to an embodiment of the present invention;

in the figure: 1. a loader; 2. a discharge port; 3. a feed hopper; 4. a feeder; 401. a delivery conduit; 5. A pulverizer; 6. a discharge pipe; 7. a conveying and operating machine; 8. a feeding hopper; 9. a pulverizer; 10. a connecting pipe; 11. a powder suction motor; 12. a repulping tank; 13. a slurry pit; 1301. a slurry pump; 14. a filter tank is arranged; 15. a clarification tank; 16. pressing a filter chamber; 17. conveying the white fertilizer skin; 18. a modification tank; 19. a first drying box; 20. a second drying box; 21. a finished product collecting box; 22. a centrifuge; 23. a servo motor; 24. a crushing main shaft; 25. a crushing cutter; 26. a filter screen; 27. and (7) an insulating layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a multi-section drying system of ardealite retarder, includes loader 1, feeder 4, milling machine 9, repulping pond 12, takes filtering pond 14 and

centrifuge

22, 1 one side fixed connection discharge gate 2 of loader, 2 bottoms of discharge gate are equipped with

feeder hopper

3, 3 bottoms fixed connection feeder hoppers 4 of feeder hopper, feeder 4 and rubbing crusher 5 pass through pipeline 401 fixed connection, discharging pipe 6 is connected to 5 bottoms of rubbing crusher, 6 bottoms of discharging pipe are equipped with transport fortune commentaries on

classics machine

7, 7 tops lower extreme of transport fortune commentaries on classics machine is equipped with

milling machine

9, 9 tops fixed connection hopper 8 of milling machine, milling machine 9 and repulping pond 12 pass through connecting pipe 10 fixed connection, the inside powder motor 11 that inhales that is equipped with of connecting pipe 10, repulping pond 12 right side is equipped with ground paste hole pond 13, the inside ground paste pump 1301 that is equipped with of ground paste pond 13, the right side of the slurry pit 13 is connected with a filter tank 14.

Further, the bottom of the belt filter 14 is connected with a clarification tank 15, the bottom of the clarification tank 15 is fixedly connected with a pressure filter 16, and the bottom of the pressure filter 16 is fixedly connected with a white fertilizer skin conveyor 17, so that a good working environment is provided for multi-section drying of the retarder.

Further, the right side of the filter chamber 14 is fixedly connected with a centrifugal machine 22, the right side of the centrifugal machine 22 is fixedly connected with a modification tank 18, the bottom of the modification tank 18 is fixedly connected with a first drying box 19, the bottom of the first drying box 19 is provided with a second drying box 20 and a finished product collecting box 21 arranged at the bottom of the second drying box 20, and multi-section drying of the retarder is facilitated.

Furthermore, a servo motor 23 is fixedly connected inside the crusher 5, an output end of the servo motor 23 is fixedly connected with a crushing main shaft 24, a finished product collecting box 21 is fixedly connected to the left end of the crushing main shaft 24, and a crushing cutter 25 is arranged on the outer surface of the crushing main shaft 24, so that the large phosphogypsum can be conveniently crushed.

Furthermore, a filter screen 26 is arranged in the clarification tank 15, and can play a role in filtering.

Furthermore, the outer sides of the first drying box 19 and the second drying box 20 are both provided with heat insulation layers 27, so that the heat loss can be reduced.

The working principle is as follows: a multi-section drying system of phosphogypsum retarder is characterized in that during work, a clarifying tank 15 is connected to the bottom of a filter tank 14, a press filter tank 16 is fixedly connected to the bottom of the clarifying tank 15, a white fertilizer skin conveyor 17 is fixedly connected to the bottom of the press filter tank 16, residues can be conveyed out, and environmental pollution is reduced, a servo motor 23 is fixedly connected to the inner part of a pulverizer 5, the output end of the servo motor 23 is fixedly connected with a pulverizing main shaft 24 and the left end of the pulverizing main shaft 24 is fixedly connected with a finished product collecting box 21, a pulverizing cutter 25 is arranged on the outer surface of the pulverizing main shaft 24, large phosphogypsum can be conveniently pulverized, a centrifugal machine 22 is fixedly connected to the right side of the filter tank 14, a modification tank 18 is fixedly connected to the right side of the centrifugal machine 22, a first drying box 19 is fixedly connected to the bottom of the modification tank 18, a second drying box 20 is arranged at the bottom of the first drying box 19, the, can reduce thermal scattering and disappearing, 1 one side fixed connection discharge gate 2 through the loader, 2 bottoms of discharge gate are equipped with feeder hopper 3, feeder 4 and rubbing crusher 5 pass through pipeline 401 fixed connection, discharging pipe 6 is connected to 5 bottoms of rubbing crusher, 6 bottoms of discharging pipe are equipped with transport fortune machine 7, 7 top lower extremes of transport fortune machine are equipped with milling machine 9, 9 fixed connection hoppers 8 on the top of milling machine, milling machine 9 and repulping pond 12 pass through connecting pipe 10 fixed connection again, connecting pipe 10 is inside to be equipped with inhales powder motor 11, repulping pond 12 right side again is equipped with ground paste hole pond 13, can make work efficiency higher, satisfy the user demand.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The multi-section drying system for the phosphogypsum retarder is characterized in that: comprises a loader (1), a feeder (4), a flour mill (9), a repulping tank (12), a belt filter (14) and a centrifuge (22), wherein one side of the loader (1) is fixedly connected with a discharge port (2), the bottom of the discharge port (2) is provided with a feed hopper (3), the bottom of the feed hopper (3) is fixedly connected with the feeder (4), the feeder (4) and a pulverizer (5) are fixedly connected through a conveying pipeline (401), the bottom of the pulverizer (5) is connected with a discharge pipe (6), the bottom of the discharge pipe (6) is provided with a conveying conveyer (7), the lower end of the top of the conveying conveyer (7) is provided with the flour mill (9), the top of the flour mill (9) is fixedly connected with a feed hopper (8), the flour mill (9) and the repulping tank (12) are fixedly connected through a connecting pipe (10), a flour sucking motor (11) is arranged inside the connecting pipe (10), the right side of the repulping pond (12) is provided with a slurry pit (13), a slurry pump (1301) is arranged inside the slurry pit (13), and the right side of the slurry pit (13) is connected with a filter tank (14).

2. The multi-segment drying system for phosphogypsum retarders of claim 1, which is characterized in that: the bottom of the band filter (14) is connected with a clarification tank (15), the bottom of the clarification tank (15) is fixedly connected with a pressure filter (16), and the bottom of the pressure filter (16) is fixedly connected with a white fertilizer skin conveyor (17).

3. The multi-segment drying system for phosphogypsum retarders of claim 1, which is characterized in that: the belt filter (14) right side fixed connection centrifuge (22), centrifuge (22) right side fixed connection modified pond (18), modified pond (18) bottom fixed connection stoving case (19), stoving case (19) bottom is equipped with No. two stoving cases (20) and sets up finished product collecting box (21) in No. two stoving case (20) bottoms.

4. The multi-segment drying system for phosphogypsum retarders of claim 1, which is characterized in that: the grinding machine is characterized in that a servo motor (23) is fixedly connected inside the grinding machine (5), the output end of the servo motor (23) is fixedly connected with a grinding main shaft (24), the left end of the grinding main shaft (24) is fixedly connected with a finished product collecting box (21), and a grinding cutter (25) is arranged on the outer surface of the grinding main shaft (24).

5. The multi-segment drying system for phosphogypsum retarders of claim 2, which is characterized in that: a filter screen (26) is arranged in the clarification tank (15).

6. The multi-section drying system for phosphogypsum retarders of claim 3, which is characterized in that: and heat preservation layers (27) are arranged on the outer sides of the first drying box (19) and the second drying box (20).