CN210699003U

CN210699003U - Front filtering device of gypsum cyclone

Info

Publication number: CN210699003U
Application number: CN201921472190.1U
Authority: CN
Inventors: 郭磊; 许勇毅
Original assignee: Clp Huachuang Power Technology Research Co ltd; Clp Huachuang Suzhou Power Technology Research Co ltd
Current assignee: Clp Huachuang Power Technology Research Co ltd; Clp Huachuang Suzhou Power Technology Research Co ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-06-09
Anticipated expiration: 2029-09-05

Abstract

The utility model relates to a filter equipment before gypsum swirler, including inlet pipe, export pipeline (4), body (2) and filter element (3), the inside of body (2) is arranged in and is connected with body (2) filter element (3), inlet pipe and export pipeline (4) are connected with body (2) respectively, vertical pipe connection before inlet pipe and export pipeline (4) and the gypsum swirler, inlet pipe is including main part (1) that gets into body (2), the wall body of main part (1) is equipped with the through-hole. Compared with the prior art, the inlet pipeline is not blocked when the vertical connection is ensured, and the vertical installation can be better realized, so that the problem that the length of the filtering device is not matched with that of the pipeline is solved, and the installation and the maintenance are facilitated.

Description

Front filtering device of gypsum cyclone

Technical Field

The utility model belongs to the technical field of the environmental protection equipment technique and specifically relates to a gypsum swirler filter equipment is related to.

Background

The desulfurization gypsum cyclone is a hydraulic cyclone specially applied to a limestone-gypsum flue gas wet desulfurization process of a coal-fired power plant, is positioned between an absorption tower and a vacuum dehydration belt conveyor in a desulfurization system, is responsible for carrying out primary separation on various byproducts discharged by the absorption tower, and a concentrated solid-liquid mixture after separation can be conveyed to the vacuum dehydration belt conveyor for secondary dehydration.

The basic principle of the cyclone is to separate two-phase or multi-phase mixtures (gypsum slurry) with certain density difference, such as liquid-liquid, liquid-solid, liquid-gas, etc., under the action of centrifugal force. The mixed liquid tangentially enters the cyclone under a certain pressure to generate a high-speed rotating flow field in the cylindrical cavity, and the components with high density in the mixture simultaneously move downwards along the axial direction under the action of the cyclone field, move outwards along the radial direction, move downwards along the wall of the device after reaching the cone section and are discharged from the underflow port, so that an outer vortex flow field is formed. The component with low density moves towards the central axis direction, and forms an inner vortex moving upwards in the axis center and then is discharged from the overflow port, thus achieving the aim of separating two phases.

The cyclone is used as a typical device of a centrifugal force and gravity composite force field, and is widely applied to various fields due to the advantages of simple structure, small occupied area, convenience in installation and operation, low operation cost and the like.

However, if impurities such as corrosion-resistant fragments, rubber, large particles and the like exist in the system, the cyclone can be blocked, and the normal operation of the system is affected. Therefore, in the production process, the inspection and the maintenance are required to be carried out regularly, the gypsum cyclone is frequently cleaned, the cleaning difficulty is high, and great inconvenience is brought to workers.

The chinese utility model patent CN207838399U specification discloses a gypsum swirler filter equipment, the power distribution box comprises a box body, the box is square box structure, both ends correspond install be used for with the second flange nozzle stub that box outlet valve is connected and with the first flange nozzle stub that box import valve is connected, the third flange nozzle stub that is used for being connected with the sediment valve is installed to the bottom of box, the inside slope of cross section of box installs a sieve, evenly set up a plurality of sieve mesh on the sieve. The filtering device of the gypsum cyclone disclosed in the patent is arranged on a transverse pipeline in front of the gypsum cyclone, and the transverse pipeline is usually short, so that the problem that the length of the filtering device is not matched with that of the pipeline exists; and meanwhile, the transverse pipeline is positioned at a higher position, so that the installation and maintenance are not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a front filtering device of a gypsum cyclone.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a filter equipment before gypsum swirler, includes inlet pipe way, outlet pipe way, body and filter element, the filter element arrange the inside of body in and with this body coupling, inlet pipe way and outlet pipe way respectively with this body coupling, vertical pipe connection before inlet pipe way and outlet pipe way and the gypsum swirler, the inlet pipe way is including the main part that gets into the body, the wall body of main part is equipped with the through-hole.

The body include box and apron, box and apron can dismantle the connection.

The box body is connected with the cover plate through bolts.

And a sealing gasket is arranged between the box body and the cover plate.

The sealing washer is a silica gel sealing washer.

The filter element is arranged between the outlet pipeline and the main body part, and the filter element is connected with the body in a sliding mode.

The inner wall of the body between the outlet pipeline and the main body part is provided with a sliding rail, the filter element is provided with a sliding groove corresponding to the sliding rail, and the sliding groove is connected with the sliding rail in a sliding manner.

The filter apparatus also includes a load cell coupled to the body.

Compared with the prior art, the utility model has the advantages of it is following:

(1) with vertical pipe connection before the gypsum swirler, and the inlet pipeline is including the main part that gets into the body, the wall body of main part is equipped with the through-hole, and the body is inside not to produce the blind spot when can guarantee that the inlet pipeline is not blockked up when vertical connection, can realize vertical installation betterly to solve filter equipment and the unmatched problem of pipeline length, do benefit to the installation and maintain.

(2) The box body and the cover plate are detachably connected, so that the filtering device is easy to clean.

(3) A sealing washer is arranged between the box body and the cover plate, so that the leakage of gypsum slurry can be prevented.

(4) Through the slide rail of body and filter element's spout, the dismouting filter element of being convenient for.

(5) The body is provided with the load cell, if impurities are accumulated to a certain degree in the main body of the device, the normal through flow of gypsum slurry is influenced, the load cell can display abnormity, and the working personnel is reminded of timely cleaning.

(6) The body can store a certain amount of impurity, can reduce the frequency of clearance, has alleviateed staff's work load to a certain extent.

(7) Simple structure, low maintenance cost and easy popularization.

Drawings

Fig. 1 is a schematic structural view of the present invention;

reference numerals:

1 is a main body part; 2 is a body; 3 is a filter element; 4 is an outlet pipeline; 5 is a load cell; 6 is a slide rail; and 7 is a cover plate.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Examples

As shown in fig. 1, the present embodiment provides a gypsum cyclone front filter device, which includes an inlet pipe, an outlet pipe 4, a body 2 and a filter element 3, wherein the filter element 3 is disposed inside the body 2 and connected to the body 2, the inlet pipe and the outlet pipe 4 are respectively connected to the body 2, and the inlet pipe and the outlet pipe 4 are connected to a front vertical pipe of the gypsum cyclone; the inlet pipeline comprises a main body part 1 entering the body 2, the wall body of the main body part 1 is provided with a through hole, and the existence of the through hole ensures the liquidity of the gypsum slurry, so that no dead zone is generated inside the body 2 (the dead zone means that the gypsum slurry in a certain place does not flow); meanwhile, the size of the through hole needs to play a role in blocking impurities, namely the diameter of the through hole is smaller than the minimum diameter of the impurities, after gypsum slurry enters the body 2 through the through hole and an outlet above the inlet pipeline, the impurities are left in the body through the filter element 3, and the impurities are prevented from returning to the inlet pipeline through the through hole; the diameter of the through hole is 6mm, so that the inlet pipeline is not blocked during vertical connection, and vertical installation can be better realized, thereby solving the problem that the length of the filtering device is not matched with that of the pipeline and being beneficial to maintenance; the outlet pipe 4 can extend into a part of the body 2 and can be flush with the upper wall surface of the body 2, so that the installation and the fixation are convenient.

The body 2 comprises a box body and a cover plate 7, the box body and the cover plate 7 are detachably connected, for example, the box body and the cover plate can be connected through bolts or can be clamped and connected, and the filtering device is easy to clean; a sealing washer is arranged between the box body and the cover plate 7, so that the leakage of gypsum slurry can be prevented.

The filter element 3 is arranged between the outlet pipeline 4 and the main body part 1, and the filter element 3 is connected with the body 2 in a sliding way, and the sliding connection is realized by the following structures: the inner wall of the body 2 between the outlet pipeline 4 and the main body part 1 is provided with a slide rail 6, the filter element 3 is provided with a slide groove corresponding to the slide rail 6, and the slide groove is connected with the slide rail 6 in a sliding way; the slide rail 6 and the slide groove are arranged to facilitate the disassembly and assembly of the filter element 3.

The filtering device further comprises a load cell 5 connected with the body 2, if impurities are accumulated to a certain degree in the device main body, the normal through flow of slurry is influenced, the load cell 5 can display abnormity, and a worker is reminded of timely cleaning.

When the device works, gypsum slurry from an absorption tower of a desulfurization system enters the filtering body 2 through the inlet pipeline, the filtering holes of the filtering element 3 can be adjusted according to process requirements, the filtering element 3 enables the slurry meeting requirements to flow through, impurities with larger particles are intercepted and fall into the bottom of the body 2, the wall body of the main body part 1 is provided with through holes, and the through holes ensure the liquidity of the gypsum slurry, so that no dead zone is generated inside the body 2; at the same time, the diameter of the through hole is smaller than the minimum diameter of the impurities, preventing the impurities from returning to the inlet pipe. The slurry passing through the filter element 3 flows into the gypsum cyclone via the outlet conduit 4 for separation of the material.

When the filtered impurities are accumulated to a certain degree in the device main body and influence the normal through flow of slurry, the load cell 5 displays abnormity, at the moment, a worker can start the standby gypsum cyclone, stop the gypsum cyclone system needing to be cleaned, isolate and clean.

During the clearance, only need open the apron 7 of body 2 side, can clear away the impurity that intercepts from body 2. If the filter element 3 needs to be cleaned or replaced, the filter element can be correspondingly operated only by drawing out the filter element along the slide rail 6.

After the cleaning work is finished, the filtering element 3 is arranged into the body 2 along the slide rail 6, a sealing gasket is arranged, the cover plate 7 is covered, and the fixing bolt is screwed on, so that the gypsum cyclone system can be put into operation again.

The body 2 of the embodiment can store a certain amount of impurities, so that the cleaning frequency can be reduced, and the workload of workers is reduced to a certain extent; meanwhile, the embodiment has the advantages of simple structure, low maintenance cost and easy popularization, is not limited to be applied to the front of a limestone-gypsum wet desulphurization cyclone of a coal-fired power plant, and can be installed in similar processes needing filtering.

Claims

1. The utility model provides a filter equipment before gypsum swirler, includes inlet pipe way, outlet pipe way (4), body (2) and filter element (3), the inside of body (2) is arranged in and is connected with body (2) in filter element (3), inlet pipe way and outlet pipe way (4) are connected with body (2) respectively, its characterized in that, vertical pipe connection before inlet pipe way and outlet pipe way (4) and the gypsum swirler, inlet pipe way is including main part (1) that gets into body (2), the wall body of main part (1) is equipped with the through-hole.

2. A gypsum cyclone front filter device according to claim 1, characterized in that the body (2) comprises a box and a cover plate (7), the box and the cover plate (7) being detachably connected.

3. A gypsum cyclone front filter device according to claim 2, characterized in that the box and the cover plate (7) are bolted.

4. A gypsum cyclone front filter device according to claim 2, characterized in that a sealing gasket is provided between the box and the cover plate (7).

5. The gypsum cyclone front filter unit of claim 4, wherein the sealing gasket is a silica gel sealing gasket.

6. A gypsum cyclone front filter device according to claim 1, characterized in that the filter element (3) is placed between the outlet duct (4) and the main part (1), the filter element (3) being in sliding connection with the body (2).

7. A gypsum cyclone front filter device according to claim 6, characterized in that the inner wall of the body (2) between the outlet pipe (4) and the main part (1) is provided with slide rails (6), the filter element (3) is provided with slide grooves corresponding to the slide rails (6), and the slide grooves are slidably connected with the slide rails (6).

8. A gypsum cyclone front filter device according to claim 1, characterized by further comprising a load cell (5) connected to the body (2).