CN213643399U

CN213643399U - Slurry filter

Info

Publication number: CN213643399U
Application number: CN202022328997.7U
Authority: CN
Inventors: 章瑞林; 洪波; 张永伟; 孙欣; 韩继涛; 王野
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-07-09
Anticipated expiration: 2030-10-19

Abstract

The utility model relates to the technical field of filtration, and discloses a slurry filter, which comprises a shell (1) and a filter element (2) accommodated in a first accommodating cavity (110) defined by the shell (1); the lower tip of casing (1) is provided with feed inlet (111) and drain (113), casing (1) upper end is provided with discharge gate (112) and is used for washing mouth (1211) of washing of filter core (2), the utility model discloses both be convenient for wash the maintenance, can effectively improve the filter effect again and improve the life of filter.

Description

Slurry filter

Technical Field

The utility model relates to a filter technical field, concretely relates to thick liquids filter.

Background

In current coal coke hydrogen plant, carry the coal slurry through need process with high-pressure coal stuff pump after grinding into the coal slurry with water with raw coal, need set up the coal slurry filter in the import department of high-pressure coal stuff pump for the life of extension high-pressure coal stuff pump, come out the coal pulverizer and intercept through the large granule or the impurity of screening, improve the coal slurry quality, thereby ensure the life of high-pressure coal stuff pump, the coal slurry filter that prior art adopted usually includes the barrel, the barrel is supported by the support, the upside of barrel sets up into the thick liquid mouth, the downside sets up out the thick liquid mouth, be provided with the upper cover plate on the nozzle, be provided with the screen cloth in the barrel, be provided with the scraping brush device in the screen cloth, the scraping brush device is connected with transmission, the lower part of barrel is provided with row cinder. The filter has a blind area at the upper part of the cylinder body corresponding to the slurry inlet, and after entering the filter from the slurry inlet, because the water-coal-slurry has a certain speed, a part of the water-coal-slurry can be adhered to the blind area at the opposite side of the slurry inlet, and after being dried, the water-coal-slurry is adhered to the cylinder body, and can suddenly fall off in large blocks along with the accumulation of time, thereby blocking the filter or damaging the filter. In order to overcome the defects, a new coal slurry filter is specially developed. The filter can reduce the amount of materials entering a blind area by changing the positions of the feed inlet and the discharge outlet, prevent the discharge outlet from being blocked by scaling, effectively improve the filtering effect of coal slurry and prolong the service life of the filter.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the filter that prior art exists and having the blind area on the upper portion of barrel and the corresponding position of thick liquid inlet, the coal slurry gets into behind the blind area can be dry and attached to on the barrel, along with the accumulation of time, lead to suddenly the bold to drop, and then the export of jam filter or the problem of damaging the filter, special research and development a slurry filter, this slurry filter can reduce the quantity that the material got into the blind area, and prevent the scale deposit and block up the discharge gate, can effectively improve the filter effect of coal slurry and improve the life of filter.

In order to achieve the above object, the present invention provides a slurry filter, comprising a housing and a filter element accommodated in a first accommodation chamber of the housing; the lower tip of casing is provided with feed inlet and drain, the upper end of casing is provided with the discharge gate and is used for washing the mouth that washes of filter core, the feed inlet with the discharge gate passes through the filter core intercommunication.

Further, the shell comprises a barrel shell with openings at two ends and a cover for covering the opening at the upper part of the barrel shell; the discharge port is formed on a side wall of the tub case, and the flushing port is formed on the cover.

Further, the filter core includes the filter vat that encloses through bucket diapire and bucket lateral wall, the bucket diapire with be formed with the filtration pore on the bucket lateral wall, the upper portion open end of filter vat with the discharge gate intercommunication.

Furthermore, a support ring extending radially inwards is fixedly connected to the inner wall of the shell, an inner ring of the support ring is arranged on the outer peripheral surface of the filter barrel in a surrounding mode, and a second accommodating cavity communicated with the feed port is defined between the support ring and the shell.

Further, the cover comprises a cylindrical cover body, and a connecting channel which is communicated with the discharge hole and the opening of the filter barrel in the working state is formed on the cover body.

Further, the connection passage is provided as a groove formed on the cap body and having a first groove opening formed on an inner cap surface of the cap body facing the first accommodation chamber and a second groove opening formed on the cap side surface, a length of the groove extending in a radial direction, a first end of the groove extending to the cap side surface of the cap body, and a second groove opening formed on the cap side surface.

Further, the second end of the groove extends to a position close to the center line of the filter vat.

Further, the groove is a rectangular groove, and the width of the rectangular groove is larger than or equal to the diameter of the discharge hole.

Further, the second end of the rectangular groove is located on one side of the center line of the cover body, which is away from the opening of the second groove.

Furthermore, an L-shaped bent pipe is arranged at the lower end part of the shell, the vertical pipe section of the L-shaped bent pipe is connected to the bottom of the barrel shell, and the opening of the horizontal pipe section of the L-shaped bent pipe is a feed inlet; the drain outlet is formed on the side wall of the horizontal pipe section.

Through the technical scheme, the utility model discloses a slurry filter adopts from the mode feeding of upwards down, treats like this that the large granule thing in the filter medium sinks to slurry filter's bottom under the effect of gravity, then discharges from the drain, and when the filter core need be washd, through washing mouthful from the last filter core that washes downwards, the filth that washes off is discharged from the drain, the utility model discloses can reduce the material and get into the amount of blind area to prevent that the scale deposit from blockking up the discharge gate, not only be convenient for wash the maintenance, can effectively improve the filter effect of coal slurry again and improve the life of filter.

Drawings

FIG. 1 is a schematic diagram of a slurry filter according to an embodiment of the present invention;

FIG. 2 is a schematic bottom view of the lid of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

fig. 4 is a schematic top view of fig. 1.

Description of the reference numerals

A housing 1; a tub shell 11; a first accommodating chamber 110; a feed port 111; a discharge port 112; a sewage discharge outlet 113; a second receiving chamber 114; a cover 12; a cover body 121; an irrigation port 1211; a recess 122; a support ring 13; inner cap surface 1213; a first slot opening 1231; second slot opening 1232; a lid side 1212; a filter element 2; a filter tub 21; a mounting flange 22; a fixed structure 3; and a leg 31.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. In the present invention, it is to be understood that the terms "away", "toward", "up", "down", and the like indicate an orientation or positional relationship corresponding to an orientation or positional relationship in actual use; "inner and outer" refer to the inner and outer relative to the profile of the components themselves; this is for convenience in describing the invention and for simplicity in description, and is not intended to indicate that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

The utility model discloses an aspect provides a thick liquids filter, as shown in fig. 1-4: the slurry filter comprises a shell 1 and a filter element 2 accommodated in a first accommodating cavity 110 of the shell 1; the lower tip of casing 1 is provided with feed inlet 111 and drain 113, the upper end of casing 1 is provided with discharge gate 112 and is used for washing filter core 2 washes mouthful 1211, feed inlet 111 with discharge gate 112 passes through filter core 2 intercommunication. The utility model discloses a slurry filter adopts from the mode feeding of upwards down, and large granule thing sinks to the bottom of this slurry filter under the effect of gravity, then from drain 113 discharge, can prevent effectively like this that discharge gate 112 from blockking up, and when filter core 2 need be abluent, through washing mouthful 1211 from the last filter core 2 that washes downwards, the filth that washes down is discharged from drain 113, the utility model discloses can reduce the volume that the material got into the blind area to prevent the scale deposit and block up the discharge gate, not only be convenient for wash the maintenance, can effectively improve the filter effect of coal slurry again and improve the life of filter.

Preferably, the housing 1 includes a tub shell 11 opened at both ends and a cover 12 covering an upper opening of the tub shell 11; the discharge port 112 is formed on a sidewall of the tub case 11, and the flushing port 1211 is formed on the cover 12. After the slurry filter works for a period of time, the slurry filter can be washed simply and conveniently by connecting a water source through the washing port 1211. When the filter element 2 needs to be replaced, the cover 12 is opened, and the filter element 2 can be taken out, so that the filter element is simple and convenient, and if the flushing port 1211 is arranged on the barrel shell 11, the area of the filter element 2 above the flushing port 1211 is easy to become a flushing blind area, and is not beneficial to cleaning. The flushing port 1211 is arranged on the cover 12, so that the filter element 2 can be flushed from top to bottom in a full-covering mode, the structure is simple, and the operation is convenient.

Preferably, the filter element 2 comprises a filter barrel 21 enclosed by a barrel bottom wall and a barrel side wall, wherein the barrel bottom wall and the barrel side wall are provided with filter holes, and the upper opening end of the filter barrel 21 is communicated with the discharge hole 112. Set up like this, when up the feeding down, the bung hole of filter vat 21 can regard as the discharge gate, and like this, the diapire and the lateral wall homoenergetic of filter vat 21 can play filterable effect, and filter area is big, and filtration efficiency is high. Moreover, if the object to be filtered is coal slurry, the coal slurry will be scaled after drying, and even if the scale of the coal slurry falls off, the discharge port 112 will not be blocked by the coal slurry either falling into the filter vat 21 or falling out of the filter vat 21.

In order to fix the filter element 2, a support ring 13 extending radially inward is fixedly connected to the inner wall of the housing 1, an inner ring of the support ring 13 is arranged around the outer circumferential surface of the filter vat 21, and a second accommodating cavity 114 communicating with the feed port 111 is defined between the filter vat 21, the support ring 13 and the housing 1. As shown in fig. 1, a mounting flange 22 extending radially outward is provided at an upper open end of the filter vat 21, and the filter vat 21 is fixed by the mounting flange 22 and the support ring 13. By the arrangement, the materials to be filtered are limited by the support ring 13 and the mounting flange 22, and only qualified materials are formed after being filtered by the filter vat 21 and flow out from the upper opening end of the filter vat 21 and then are discharged through the discharge hole 112.

In order to further reduce the contact space between the upper part of the first accommodating cavity 110 and the upper opening end of the filter vat 21, and further reduce the dead zone of material flow, the cover 12 comprises a cylindrical cover body 121, and a connecting channel for communicating the discharge hole 112 and the opening of the filter vat 21 in the working state is formed on the cover body 121. By arranging the connecting channel for communicating the feed inlet 111 and the discharge outlet 112 on the cover 12, qualified materials formed after filtering the substances to be filtered coming from the feed inlet 111 can be controlled to be discharged from the discharge outlet 112 through the upper opening end of the filter barrel 21 and the connecting channel; the portion of impurities intercepted by the filter element 2 remains in the second housing chamber 114 below the support ring 13; the cover 12 can reduce the area of the blind area, improve the filtering efficiency and effectively prolong the service life of the slurry filter.

Preferably, as shown in fig. 2, the connection passage is provided as a groove 122 formed on the cap body 121 and having a first groove opening 1231 and a second groove opening 1232, the first groove opening 1231 is formed on an inner cap surface 1213 of the cap body 121 facing into the first receiving chamber 110, the length of the groove 122 extends in a radial direction, a first end of the groove 122 extends to a cap side surface 1212 of the cap body 121, and the second groove opening 1232 is formed on the cap side surface 1212. The structure is simple and the processing is easy. Thus, when the material to be filtered enters the slurry filter from the feed port 111, the material to be filtered entering the slurry filter from the feed port 111 has a certain pressure, when the cover 12 does not adopt such a structure, under the effect of the pressure, a part of the qualified material after filtering will directly go upward from the bung hole of the filter barrel 21 under the action of acceleration, and then enter the upper region of the barrel shell 11, when the qualified material is coal slurry type material, the qualified material will be dried, scaled and then fall off because the acceleration is sprayed to the material in the upper region of the barrel shell 11, and certain influence will be caused on the filtering. Through setting up recess 122, the qualified material of the bung hole discharge from filter vat 21 can only be followed recess 122 and discharged through discharge gate 112, can effectively reduce the area that qualified material got into the upper portion region of barrel casing 11, and then reduces the degree of scale deposit to improve filtration efficiency and slurry filter's life-span.

Preferably, the second end of the groove 122 extends to a position close to the center line of the filter vat 21. Thus, the lid 12 will block a portion of the upper open end of the filter basket 21, and the common portion of the recess 122 and the upper open end of the filter basket 21 will form a restriction that will regulate the flow and outlet flow rate therein, scouring the walls of the recess 122 and the outlet 112, preventing the outlet 112 from becoming clogged and preventing material, such as coal slurry, from scaling on the walls of the recess 122.

Preferably, the groove 122 is a rectangular groove, and the width of the rectangular groove is greater than or equal to the diameter of the discharge hole 112. Thus, the structure is simple and the processing is easy. The width of the rectangular slot is preferably equal to the diameter of the spout 112 to match the size of the spout 112. In this way, the qualified material can be discharged from the discharge port 112 as completely as possible after passing through the groove 122.

Preferably, the second end of the rectangular slot is located on a side of the centerline of the cap body 121 facing away from the second slot opening 1232. Thus, the flow through the throttling opening can be ensured not to be too low.

Preferably, an L-shaped elbow is arranged at the lower end of the housing 1, a vertical pipe section of the L-shaped elbow is connected to the bottom of the barrel shell 11, and an opening of a horizontal pipe section of the L-shaped elbow is a feed port 111; the drain 113 is formed on a sidewall of the horizontal pipe section. The horizontal pipe section of the L-shaped bent pipe and the vertical pipe section of the L-shaped bent pipe are in arc transition, the feeding port 111 and the discharging port 112 share the L-shaped bent pipe, when sewage is required to be discharged, the feeding port 111 and the discharging port 112 are closed, the sewage discharge port 113 and the flushing port 1211 are opened, the sewage can be flushed and discharged at the same time, when the filter cartridge works normally, the sewage discharge port 113 and the flushing port 1211 are closed, the cartridge shell 11 and the discharging port 112 are opened, materials to be filtered enter the shell 1 from the feeding port 111, are filtered from the cartridge bottom wall and the cartridge side wall of the filter element 2, and then qualified materials are discharged from the discharging port 112 after passing through the upper opening end of

Preferably, the slurry filter further comprises a fixed structure 3, the fixed structure 3 comprising legs 31. The utility model discloses a ground paste filter realizes fixedly through using rag bolt fixed landing leg 31. Reliable connection and easy replacement.

In an embodiment of the cover 12, the cover 12 further comprises a cover rim extending radially from an end of the cover body 121 facing away from the filter cartridge 2, and the cover rim is provided with a mounting hole for mounting and fixing a threaded connection between the barrel case 11 and the cover 12.

Preferably, a flushing port 1211 is formed in the bottom wall of the recess 122 and penetrates the upper surface of the lid 12. Thus, a water pipe, for example, can be directly connected to the upper opening of the flushing port 1211 to perform the flushing operation. It is also ensured that the flushing liquid enters the filter vat 21 from the groove 122 through the upper open end of the filter vat 21 and then enters the second receiving chamber 114, and the cavity part in the slurry filter is flushed without dead angles.

In the second embodiment of the cap 12, the cap 12 includes a plate-shaped cover plate, the cover plate is coaxially fixed to the cap body 121, and the flushing port 1211 penetrates through the cap body 121 and the cover plate. The cover 12 is fixed to the tub case 11 by a cover plate.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. Including each of the specific features, are combined in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. A slurry filter, characterized in that it comprises a casing (1) and a filter element (2) housed in a first housing chamber (110) of the casing (1); the lower tip of casing (1) is provided with feed inlet (111) and drain (113), the upper end of casing (1) is provided with discharge gate (112) and is used for washing flushing outlet (1211) of filter core (2), feed inlet (111) with discharge gate (112) pass through filter core (2) intercommunication.

2. The slurry filter according to claim 1, wherein the housing (1) comprises a barrel shell (11) open at both ends and a lid (12) covering an upper opening of the barrel shell (11); the discharge port (112) is formed on a sidewall of the tub case (11), and the flushing port (1211) is formed on the cover (12).

3. The slurry filter according to claim 2, wherein the filter element (2) comprises a filter vat (21) enclosed by a vat bottom wall and a vat side wall, wherein the vat bottom wall and the vat side wall are formed with filter holes, and an upper open end of the filter vat (21) is communicated with the discharge port (112).

4. The slurry filter according to claim 3, wherein a radially inwardly extending support ring (13) is fixed to an inner wall of the housing (1), an inner ring of the support ring (13) is arranged around an outer circumferential surface of the filter vat (21), and a second receiving chamber (114) communicating with the feed port (111) is defined among the filter vat (21), the support ring (13) and the housing (1).

5. The slurry filter according to claim 3, wherein the lid (12) comprises a cylindrical lid body (121), and the lid body (121) is formed with a connecting channel that communicates the discharge port (112) and the opening of the filter vat (21) in an operating state.

6. The slurry filter according to claim 5, wherein the connecting channels are provided as a groove (122) formed in the lid body (121) having a first groove opening (1231) and a second groove opening (1232), the first groove opening (1231) being formed in an inner lid surface (1213) of the lid body (121) facing into the first receiving chamber (110), the length of the groove (122) extending radially, a first end of the groove (122) extending to a lid side surface (1212) of the lid body (121), a second groove opening (1232) being formed on the lid side surface (1212).

7. The slurry filter of claim 6, wherein the second end of the trough (122) extends to near a centerline of the filter basket (21).

8. The slurry filter of claim 7, wherein the grooves (122) are rectangular grooves having a width equal to or greater than the diameter of the discharge outlet (112).

9. The slurry filter of claim 8, wherein the second end of the rectangular tank is located on a side of the centerline of the lid body (121) facing away from the second tank opening (1232).

10. The slurry filter according to any of the claims 1-9, wherein the lower end of the shell (1) is provided with an L-bend, the vertical pipe section of the L-bend is connected to the bottom of the barrel shell (11), and the opening of the horizontal pipe section of the L-bend is a feed inlet (111); the sewage discharge outlet (113) is formed on the side wall of the horizontal pipe section.