CN212493898U

CN212493898U - Negative pressure vibrating screen

Info

Publication number: CN212493898U
Application number: CN202020983792.XU
Authority: CN
Inventors: 赵昌武; 陈海滨; 陈圣儒
Original assignee: Hunan Xiangheng Salt Chemical Co ltd
Current assignee: Hunan Xiangheng Salt Chemical Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-02-09
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a negative pressure shale shaker, including the support with locate on the support and the sieve case that the slope set up, the side and the bottom of the low slope end of sieve case are equipped with first ejection of compact case and second ejection of compact case respectively, and the top of its high slope end is equipped with the inlet pipe, first ejection of compact case and second ejection of compact case are connected with first discharging pipe and second discharging pipe respectively, the bottom of first discharging pipe is connected with first unloading pipe, the bottom of first unloading pipe is connected with the liquid storage pot, and its bottom stretches into below the liquid level of liquid in the liquid storage pot. The utility model discloses a below inserting the liquid level of liquid storage pot with the bottom of first unloading pipe, the unloading end of having avoided first unloading pipe gets into the outside air and causes the phenomenon of leaking out and lead to the negative pressure environment to be destroyed, has guaranteed that whole screening process all is gone on under the negative pressure state, makes the difficult jam of screen cloth, improves screening efficiency.

Description

Negative pressure vibrating screen

Technical Field

The utility model relates to a glauber's salt preparation equipment technical field, in particular to negative pressure shale shaker.

Background

Anhydrous sodium sulfate is also called anhydrous sodium sulfate, anhydrous sodium sulfate; white fine crystals or powder, easily soluble in water, hygroscopic, odorless, and nontoxic. Sodium sulfate forms heptahydrate and decahydrate, and heptahydrate (Na2SO4 & 7H2O) is white orthorhombic crystal. The anhydride was converted on heating to 24.4 ℃. Sodium sulfate is reduced to sodium sulfide when reacting with carbon at high temperature. Therefore, the method is widely used for manufacturing sodium sulfide, sodium silicate and the like, and is also used for processes of papermaking, glass, printing and dyeing, synthetic fiber, leather making, food, chemical engineering and the like. In addition, the catalyst is also used as a blending agent of non-ferrous metal ore dressing, porcelain glaze, rubber, chemical fertilizer and light materials, and is also an additive of cement and concrete and a catalyst for synthesizing and preparing organic chemical products.

The traditional technological process for preparing mirabilite is to evaporate and concentrate the mirabilite water to form supersaturated solution of mirabilite, separate out mirabilite crystal by centrifugation, then dry, sieve and cool the mirabilite crystal to obtain the finished product of mirabilite. In the process of preparing the mirabilite, the mirabilite with different particle sizes is separated by a vibrating screen to prepare a mirabilite finished product meeting the production requirements. There are many shale shakers that are used for the screening among the prior art, for CN201220608558.4 discloses a shale shaker negative pressure accuse dirt device includes sack cleaner, shale shaker as patent application, fixed mounting has cone ash hopper on the shale shaker, install the sack cleaner on the cone ash hopper, cone ash hopper passes through flexible rubber dust belt with the sack cleaner and is connected, and the sack cleaner passes through dust remover support maintenance platform and supports subaerial, and the shale shaker top dust cover is installed on the shale shaker through flexible rubber dust belt all around, and the pan feeding end and the blanking union coupling of shale shaker. The discharge gate of the device is not provided with a sealing device, and the phenomenon of air leakage easily occurs in the discharging process, so that the negative pressure environment inside the device is damaged, and the screening effect is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the negative pressure vibrating screen is simple in structure, capable of improving the screening effect and avoiding the abrasion phenomenon of the device due to vibration.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a negative pressure shale shaker, includes the support and locates the sieve case that just the slope set up on the support, the side and the bottom of the low slope end of sieve case are equipped with first ejection of compact case and second ejection of compact case respectively, and the top of its high slope end is equipped with the inlet pipe, first ejection of compact case and second ejection of compact case are connected with first discharging pipe and second discharging pipe respectively, the bottom of first discharging pipe is connected with first unloading pipe, the bottom of first unloading pipe is connected with the liquid storage pot, and its bottom stretches into below the liquid level of liquid in the liquid storage pot.

Furthermore, the bottom of first discharging pipe stretches into first unloading intraductal, and leaves the clearance between its inner wall and the outer wall of first unloading pipe, and the outer wall cover of its outer wall and first unloading pipe is equipped with the canvas.

Further, the bottom of second discharging pipe is connected with second unloading pipe, and in its bottom stretched into the second unloading pipe, leave the clearance between the inner wall of second discharging pipe and the outer wall of second unloading pipe, and the outer wall cover of its outer wall and first unloading pipe is equipped with the canvas.

Furthermore, the top of inlet pipe is connected with the third unloading pipe, the bottom of third unloading pipe stretches into in the inlet pipe, and leaves the clearance between its outer wall and the inner wall of inlet pipe, the outer wall cover of inlet pipe and third unloading pipe is equipped with the canvas.

Further, the top of third unloading pipe is connected with the bell mouth, the internal diameter of bell mouth reduces from last to down in proper order.

Further, the support all is equipped with the stand for the side of the high slope end of sieve case, and its top surface for the low slope end of sieve case and the top surface of stand all is equipped with damping device.

Further, damping device includes first connecting plate, damping spring and the second connecting plate that connects gradually from top to bottom.

Further, the first connecting plate is connected with the support and the stand column, the second connecting plate is provided with a connecting ring, the low inclined end and the high inclined end of the sieve box are both provided with a supporting shaft in a penetrating mode, and the supporting shaft penetrates through the connecting ring.

Further, a motor is installed at the top end of the screen box.

Further, the bottom end of the second blanking pipe is connected with a bucket elevator.

The utility model relates to a negative pressure shale shaker's beneficial effect:

(1) the utility model prevents the blanking end of the first blanking pipe from entering the outside air to cause air leakage and break the negative pressure environment by inserting the bottom end of the first blanking pipe below the liquid level of the liquid storage tank, ensures that the whole screening process is carried out in a negative pressure state, ensures that the screen is not easy to be blocked and improves the screening efficiency;

(2) the utility model discloses a clearance all leaves between first discharging pipe and first unloading pipe, second discharging pipe and second unloading pipe and inlet pipe and the third unloading pipe, does not adopt lug connection's mode, can avoid the shale shaker to the friction damage of first unloading pipe, second unloading pipe and third unloading pipe when the vibration, reduces the maintenance cost of this shale shaker, improves its life.

Drawings

Fig. 1 is a schematic perspective view of a negative pressure vibrating screen according to the present invention;

fig. 2-is the structure schematic diagram of the shock absorbing device.

The above reference numerals: 1-support, 2-sieve box, 3-support shaft, 4-motor, 5-column, 6-first connecting plate, 7-damping spring, 8-second connecting plate, 9-connecting ring, 10-first discharging box, 11-second discharging box, 12-feeding pipe, 13-first discharging pipe, 14-second discharging pipe, 15-first discharging pipe, 16-second discharging pipe, 17-third discharging pipe, 18-cone, 19-liquid storage tank, 20-canvas.

Detailed Description

The present invention is further described with reference to the following drawings and examples, but these embodiments do not limit the scope of the present invention in any way.

Example 1

The utility model provides a negative pressure vibrating screen, includes support 1 and locates the sieve case 2 that just the slope set up on support 1, the low slope end and the high slope end of sieve case 2 all run through and are equipped with back shaft 3, and install motor 4 on its top, back shaft 3 is parallel with the width direction of sieve case 2, support 1 all is equipped with stand 5 for the side of the high slope end of sieve case 2 (the right flank of support 1 promptly), and its top surface (the top surface of support 1 left end promptly) and for the low slope end of sieve case 2 and the top surface of stand 5 all is equipped with damping device.

Damping device includes first connecting plate 6, damping spring 7 and the second connecting plate 8 that from the top down connects gradually, first connecting plate 6 is connected with support 1 and stand 5, be equipped with go-between 9 on the second connecting plate 8, back shaft 3 wears to locate on the go-between 9 that lies in sieve case 2 both sides relatively for support sieve case 2. The damping device can play a role in buffering the vibrating screen, reduce abrasion between parts of the equipment due to vibration of the vibrating screen, and prolong the service life of the vibrating screen.

The side and the bottom of the low slope end of sieve case 2 are equipped with first ejection of compact case 10 and second ejection of compact case 11 respectively, and the top of its high slope end is equipped with inlet pipe 12, first ejection of compact case 10 and second ejection of compact case 11 are connected with first discharging pipe 13 and second discharging pipe 14 respectively, the bottom of first discharging pipe 13 and second discharging pipe 14 is connected with first unloading pipe 15 and second unloading pipe 16 respectively, the top of inlet pipe 12 is connected with third unloading pipe 17, the bottom of second unloading pipe 16 is connected with the bucket and carries the machine.

The top end of the third blanking pipe 17 is connected with a conical opening 18 with the inner diameter gradually decreasing from top to bottom, the diameter of the connecting part of the conical opening 18 and the third blanking pipe 17 is gradually reduced due to the arrangement of the conical opening 18, air can be prevented from entering the vibrating screen from the connecting part, the air leakage phenomenon is reduced, and the negative pressure environment in the vibrating screen is maintained.

The conical opening 18 is connected with a feed opening of a discharge cover of the rotary dryer through a pipeline. The discharge cover is provided with an induced draft fan, the induced draft fan enables negative pressure to be generated in the discharge cover, the discharge cover is communicated with the vibrating screen through a pipeline in sequence, and the vibrating screen is made to be in a negative pressure environment.

The bottom end of the first blanking pipe 15 is connected with a liquid storage tank 19, and the bottom end of the first blanking pipe is ingested below the liquid level of the liquid in the liquid storage tank 19. Insert below the liquid level through the bottom with first unloading pipe 15 and in order to form the liquid seal effect, avoid the bottom entering this shale shaker of outside air from first unloading end, guarantee that the shale shaker is in negative pressure environment at whole screening in-process, improved the effect of screening.

The bottom end of the first discharge pipe 13 extends into the first blanking pipe 15, a gap is reserved between the inner wall of the first discharge pipe and the outer wall of the first blanking pipe 15, and canvas 20 is sleeved on the outer wall of the first discharge pipe 15 and the outer wall of the first blanking pipe; the bottom end of the second discharge pipe 14 is connected with a second blanking pipe 16, the bottom end of the second discharge pipe extends into the second blanking pipe 16, a gap is reserved between the inner wall of the second discharge pipe 14 and the outer wall of the second blanking pipe 16, and canvas 20 is sleeved on the outer wall of the second discharge pipe and the outer wall of the first blanking pipe 15; the top of inlet pipe 12 is connected with third unloading pipe 17, the bottom of third unloading pipe 17 stretches into in the inlet pipe 12, and leaves the clearance between the inner wall of its outer wall and inlet pipe 12, the outer wall cover of inlet pipe 12 and third unloading pipe 17 is equipped with canvas 20. The canvas 20 can be wound by iron wires and then tied on the first discharging pipe 13, the first blanking pipe 15, the second discharging pipe 14, the second blanking pipe 16, the feeding pipe 12 and the third blanking pipe 17.

The utility model discloses a all leave the clearance between first discharging pipe 13 and first unloading pipe 15, second discharging pipe 14 and second unloading pipe 16 and inlet pipe 12 and third unloading pipe 17, rather than adopting the mode of direct connection, avoided because of the vibration of shale shaker lead to first discharging pipe 13 and first unloading pipe 15, second discharging pipe 14 and second unloading pipe 16 and inlet pipe 12 and the friction damage between the third unloading pipe 17, reduced the cost of maintenance of this equipment, prolonged life;

the bottom end of the first discharging pipe 13 extends into the first blanking pipe 15, the bottom end of the second discharging pipe 14 extends into the second blanking pipe 16, the bottom end of the third blanking pipe 17 extends into the feeding pipe 12, canvas 20 is wrapped on the outer walls of the first discharging pipe 13, the first blanking pipe 15, the second discharging pipe 14, the second blanking pipe 16, the third blanking pipe 17 and the feeding pipe 12, the canvas 20 can seal the joints among the pipelines, and a negative pressure environment in the vibrating screen is guaranteed; in stretching into first unloading pipe 15 through the bottom with first discharging pipe 13, the bottom of second discharging pipe 14 stretches into second unloading intraductal 16, and in third unloading pipe 17's bottom stretched into inlet pipe 12, can avoid the phenomenon of glauber's salt adhesion on canvas 20 in the pipeline, reduce the loss of glauber's salt at the vibratory screening in-process, improve the output of glauber's salt.

The utility model relates to a theory of operation and application method of negative pressure shale shaker:

the utility model discloses during operation, the glauber's salt that does not sieve gets into in sieve case 2 in proper order bell mouth 18, third unloading pipe 17 and inlet pipe 12 earlier, under the vibration effect of shale shaker, the glauber's salt is sieved into thick glauber's salt and the glauber's salt that accords with the mark particle diameter in this sieve case 2, thick glauber's salt loops through first ejection of compact case 10, first discharging pipe 13, first unloading pipe 15 and gets into liquid storage pot 19 that contains water and dissolve to stretch into below the liquid level through the bottom of first unloading end and form the liquid seal, guaranteed the negative pressure environment in the shale shaker; mirabilite meeting the standard particle size sequentially passes through the second discharging box 11, the second discharging pipe 14 and the second discharging pipe 16 to enter the bucket elevator, and is conveyed to the next procedure through the bucket elevator to be packaged.

It will be further understood that the terms "first," "second," and the like, are used herein to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

As used herein, the terms "upper," "lower," "left," "right," and the like are used for convenience of description based on the orientation as shown in the figures of the drawings, which may vary from one actual device to another depending on the manner in which the device is arranged.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.

Claims

1. The utility model provides a negative pressure shale shaker, includes the support and locates the sieve case that just the slope set up on the support, the side and the bottom of the low slope end of sieve case are equipped with first ejection of compact case and second ejection of compact case respectively, and the top of its high slope end is equipped with the inlet pipe, first ejection of compact case and second ejection of compact case are connected with first discharging pipe and second discharging pipe, its characterized in that respectively: the bottom of first discharging pipe is connected with first unloading pipe, the bottom of first unloading pipe is connected with the liquid storage pot, and its bottom stretches into below the liquid level of liquid in the liquid storage pot.

2. The negative pressure vibrating screen of claim 1, wherein: the bottom of first discharging pipe stretches into first unloading intraductal, and leaves the clearance between the outer wall of its inner wall and first unloading pipe, and the canvas is equipped with to its outer wall and the outer wall cover of first unloading pipe.

3. The negative pressure vibrating screen of claim 1, wherein: the bottom of second discharging pipe is connected with second unloading pipe, and in its bottom stretched into the second unloading pipe, leave the clearance between the inner wall of second discharging pipe and the outer wall of second unloading pipe, and the outer wall cover of its outer wall and first unloading pipe is equipped with the canvas.

4. The negative pressure vibrating screen of claim 1, wherein: the top of inlet pipe is connected with the third unloading pipe, the bottom of third unloading pipe stretches into in the inlet pipe, and leaves the clearance between its outer wall and the inner wall of inlet pipe, the outer wall cover of inlet pipe and third unloading pipe is equipped with the canvas.

5. The negative pressure vibrating screen of claim 4, wherein: the top end of the third blanking pipe is connected with a conical opening, and the inner diameter of the conical opening is sequentially reduced from top to bottom.

6. The negative pressure vibrating screen of claim 1, wherein: the support all is equipped with the stand for the side of the high tip of sieve case, and its top surface for the low tip of sieve case and the top surface of stand all is equipped with damping device.

7. The negative pressure vibrating screen of claim 6, wherein: the damping device comprises a first connecting plate, a damping spring and a second connecting plate which are sequentially connected from top to bottom.

8. The negative pressure vibrating screen of claim 7, wherein: the first connecting plate is connected with the support and the stand column, the second connecting plate is provided with a connecting ring, the low-inclined end and the high-inclined end of the screen box are both provided with a supporting shaft in a penetrating mode, and the supporting shaft penetrates through the connecting ring.

9. The negative pressure vibrating screen of claim 1, wherein: and a motor is installed at the top end of the screen box.

10. The negative pressure vibrating screen of claim 3, wherein: and the bottom end of the second blanking pipe is connected with a bucket elevator.