CN114798430A - Ash screening equipment used in front of ash conveying system - Google Patents
Ash screening equipment used in front of ash conveying system Download PDFInfo
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- CN114798430A CN114798430A CN202210123273.XA CN202210123273A CN114798430A CN 114798430 A CN114798430 A CN 114798430A CN 202210123273 A CN202210123273 A CN 202210123273A CN 114798430 A CN114798430 A CN 114798430A
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- plate
- ash
- fixedly connected
- box body
- filter plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
- B07B1/343—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen with mechanical drive elements other than electromagnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses ash screening equipment used before an ash conveying system, which relates to the field of ash screening and comprises a box body, wherein the bottom of the box body is fixedly connected with a conveying belt, a material shifting assembly is rotationally connected with the inner wall of the box body, a screening assembly is in sealed sliding connection with the inner wall of the box body, and a dust falling assembly is fixedly connected with the side wall of the box body; according to the invention, through the matching among the material shifting plate, the arc filter plate, the first spring, the linkage rod and the straight filter plate, the length of the material shifting plate is greater than the distance from the rotating shaft to the side wall of the arc filter plate, so that the arc filter plate can move downwards after the material shifting plate is contacted with the arc filter plate, and then when the material shifting plate is separated from being contacted with the arc filter plate, the arc filter plate and the straight filter plate can simultaneously shake up and down under the rebound effect of the first spring, so that ash can be rapidly screened, and the screening efficiency of the device is improved.
Description
Technical Field
The invention relates to the technical field of ash screening, in particular to ash screening equipment used before an ash conveying system.
Background
The pneumatic ash conveying system is a conveying device which takes air as a conveying medium and power, utilizes the energy of the air flow to convey granular materials in an air flow direction in a closed pipeline and conveys dry ash in each ash collecting hopper of a boiler to a designated place. According to the different pressure of the conveying system, the pneumatic ash removal system is divided into a negative pressure type and a positive pressure type; the negative pressure type system sucks air and ash into a pipeline by the negative pressure in the system, and the whole conveying process of the materials is carried out under the pressure lower than the atmospheric pressure; positive pressure systems use compressed air at pressures above atmospheric to propel the material. In the process of ash transportation, the inner wall of the pipeline can be blocked due to different particle sizes of the ash, so that the ash needs to be screened in the process.
At present, current grey material screening equipment need utilize a plurality of driving sources just can accomplish the multistage screening to the grey material, and the process is comparatively complicated and loaded down with trivial details, can't realize the efficient screening to the grey material, moreover at grey material screening in-process, can be at the inside a large amount of dusts that produce of screening incasement portion, and current equipment can not effectively handle the dust for the dust is arranged outward, causes the pollution of environment, is not conform to current social environmental protection main part.
Disclosure of Invention
The invention aims to solve the defects that the ash cannot be efficiently screened and the dust generated in the screening process cannot be effectively treated in the prior art, and provides the ash screening equipment used before an ash conveying system.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ash screening apparatus for use before an ash conveying system, comprising:
the box, box upper surface fixedly connected with feed inlet, box lateral wall fixedly connected with driving motor, driving motor output shaft end fixedly connected with first runner, bottom half fixedly connected with transportation area, transportation area power shaft outer tip fixedly connected with second runner, the transmission is connected between second runner and the first runner.
The material stirring assembly is rotationally connected with the inner wall of the box body and is used for quickly stirring materials and driving the screening part of the device;
the screening assembly is connected with the inner wall of the box body in a sealing and sliding manner and is used for performing multi-stage screening and stacking on ash;
the dust fall subassembly, dust fall subassembly and box lateral wall fixed connection, the dust fall subassembly is used for filtering, arranging outward the inside raise dust of box.
Preferably, the kick-out assembly comprises a rotating shaft, the rotating shaft is rotatably connected with the inner wall of the box body, a kick-out plate is fixedly connected to the side wall of the rotating shaft, a third rotating wheel is fixedly connected to the outer end portion of the rotating shaft, and the third rotating wheel is in transmission connection with the first rotating wheel.
Preferably, the screening assembly comprises an arc filtering plate and a straight filtering plate, first springs are fixedly connected to two sides of the bottom of the arc filtering plate and the bottom of the straight filtering plate, positioning plates are fixedly connected to the bottom of the first springs and the inner wall of the box body, and linkage rods are fixedly connected between the arc filtering plate and the straight filtering plate.
Preferably, the length of the kick-out plate is greater than the distance from the rotating shaft to the side wall of the circular arc filter plate, the kick-out plate can be attached to the side wall of the circular arc filter plate, a limiting plate is fixedly connected to the inner wall of the box body above the circular arc filter plate, and the limiting plate is attached to the upper surface of the circular arc filter plate.
Preferably, the side wall of the box body is respectively positioned at the lower end parts of the arc filter plate and the straight filter plate, and is provided with a discharge port, and the inner diameter of the discharge port is respectively smaller than the heights of the arc filter plate and the straight filter plate.
Preferably, the dust fall subassembly includes the piston storehouse, piston storehouse inner wall sealing sliding connection has the sliding block, fixedly connected with second spring between sliding block and the piston storehouse lateral wall, piston storehouse upper portion intercommunication has the blast pipe, blast pipe lateral wall fixedly connected with intake pipe, and the intake pipe other end and box inner chamber intercommunication, the intake pipe middle part can be dismantled and be connected with the U-shaped pipe, and the U-shaped pipe is close to the inner wall fixedly connected with filter screen of blast pipe one end.
Preferably, the inside that the blast pipe is close to the exit end is provided with first check valve, the inside that the intake pipe is close to blast pipe one end is provided with the second check valve, sliding block bottom lateral wall is convex setting, and the sliding block can contradict the slip with between the switch-off plate.
Preferably, the bottom of the positioning plate above the right end of the conveying belt is fixedly connected with a baffle plate, the baffle plate is made of elastic rubber materials, the bottom of the baffle plate is attached to the upper surface of the conveying belt, the bottom of the box body is fixedly connected with a scraping plate below the output end of the conveying belt, and the scraping plate is attached to the lower surface of the conveying belt.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the matching among the material shifting plate, the arc filter plate, the first spring, the linkage rod and the straight filter plate, the length of the material shifting plate is greater than the distance from the rotating shaft to the side wall of the arc filter plate, so that the arc filter plate can move downwards after the material shifting plate is contacted with the arc filter plate, and then when the material shifting plate is separated from being contacted with the arc filter plate, the arc filter plate and the straight filter plate can simultaneously shake up and down under the rebound effect of the first spring, so that ash can be rapidly screened, and the screening efficiency of the device is improved.
2. According to the invention, through the matching among the material shifting plate, the sliding block, the piston bin, the second spring, the first one-way valve and the second one-way valve, the sliding block can move towards the piston bin, so that gas in the piston bin is discharged out through the exhaust pipe, then the sliding block can be reset under the resilience action of the second spring, so that dust can be sucked from the interior of the box body through the air inlet pipe, and the dust is filtered by the filter screen, and the dust in the box body can be filtered by reciprocating in such a way, so that the surrounding environment quality of the device during working is improved, and the environmental protection requirement is better met.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an ash screening apparatus before being used in an ash conveying system according to the present invention;
FIG. 2 is a schematic side view of an overall construction of an ash screening apparatus prior to use in an ash conveying system according to the present invention;
FIG. 3 is a schematic diagram of a half-section structure of an ash screening apparatus before being used in an ash conveying system according to the present invention;
FIG. 4 is an enlarged schematic view of the area A in FIG. 3 of an ash screening apparatus before use in an ash conveying system according to the present invention;
FIG. 5 is a schematic view of a partial cross-sectional view of an ash screening apparatus prior to use in an ash conveying system according to the present invention;
fig. 6 is an enlarged structural schematic diagram of an area B in fig. 5 of an ash screening apparatus before being used in an ash conveying system according to the present invention.
In the figure: 1. a box body; 101. a feed inlet; 102. a discharge port; 2. a drive motor; 21. a first runner; 3. a conveyor belt; 31. a second runner; 32. a shielding plate; 33. a scraping plate; 4. a material poking component; 41. a rotating shaft; 42. a kick-out plate; 43. a third rotating wheel; 5. a screen assembly; 51. a circular arc filter plate; 52. a flat filter plate; 53. a first spring; 54. positioning a plate; 55. a linkage rod; 6. a dust fall assembly; 61. a piston chamber; 62. a slider; 63. a second spring; 64. an exhaust pipe; 65. an air inlet pipe; 66. a U-shaped tube; 67. a filter screen; 7. and a limiting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, an ash screening apparatus for use before an ash conveying system, comprising:
the box 1, fixed surface is connected with feed inlet 101 on the box 1, and 1 lateral wall fixedly connected with driving motor 2 of box, driving motor output shaft end fixedly connected with first runner 21, 1 bottom fixedly connected with transport area 3 of box, the outer tip fixedly connected with second runner 31 of 3 power shafts in transport area, the transmission is connected between second runner 31 and the first runner 21.
The material stirring component 4 is rotationally connected with the inner wall of the box body 1, and the material stirring component 4 is used for quickly stirring materials and driving the screening part of the device;
the screening component 5 is connected with the inner wall of the box body 1 in a sealing and sliding manner, and the screening component 5 is used for performing multi-stage screening and stacking on ash;
The material shifting assembly 4 comprises a rotating shaft 41, the rotating shaft 41 is rotatably connected with the inner wall of the box body 1, the side wall of the rotating shaft 41 is fixedly connected with a material shifting plate 42, the outer end part of the rotating shaft 41 is fixedly connected with a third rotating wheel 43, and the third rotating wheel 43 is in transmission connection with the first rotating wheel 21;
referring to fig. 3, wherein, the screening assembly 5 comprises an arc filtering plate 51 and a straight filtering plate 52, both sides of the bottoms of the arc filtering plate 51 and the straight filtering plate 52 are fixedly connected with a first spring 53, the bottoms of the first springs 53 are fixedly connected with a positioning plate 54, the positioning plate 54 is fixedly connected with the inner wall of the box body 1, and a linkage rod 55 is fixedly connected between the arc filtering plate 51 and the straight filtering plate 52;
referring to fig. 3, wherein the length of the material-stirring plate 42 is greater than the distance from the rotating shaft 41 to the side wall of the circular arc filter plate 51, the material-stirring plate 42 can be attached to the side wall of the circular arc filter plate 51, the inner wall of the box body 1 above the circular arc filter plate 51 is fixedly connected with a limiting plate 7, and the limiting plate 7 is attached to the upper surface of the circular arc filter plate 51;
through the arrangement of the structure, firstly, ash is poured into the box body 1 from the feeding hole 101, when the driving motor 2 rotates, the rotating shaft 41 is driven to rotate by utilizing the transmission connection relation between the third rotating wheel 43 and the first rotating wheel 21, and the material shifting plate 42 is driven to rotate by the rotating shaft, when the material shifting plate 42 rotates to the lower part to contact with the arc filter plate 51, because the length of the material shifting plate 42 is greater than the distance from the rotating shaft 41 to the side wall of the arc filter plate 51, the arc filter plate 51 is abutted, and under the retraction effect of the first spring 53, the arc filter plate 51 moves downwards, so that the material shifting plate 42 scrapes in the arc filter plate 51, not only can the ash with the particle size larger than the aperture of the arc filter plate 51 move to the lower end part of the arc filter plate 51 quickly, but also can enable the ash with the particle size smaller than the arc filter plate 51 to pass through the arc filter plate 51 quickly, thereby the screening speed of ash material has been improved to at the in-process that circular arc filter 51 moved down, through the setting of trace 55, still will drive straight filter 52 and move down, when switch-plate 42 breaks away from and contacts with circular arc filter 51 immediately, under the resilience effect of first spring 53, will make circular arc filter 51 and straight filter 52 take place the shake from top to bottom simultaneously, thereby can sieve the ash material fast, thereby improved the device's screening efficiency.
Referring to fig. 3, discharge ports 102 are respectively formed in the side walls of the box body 1 at the lower end portions of the arc filter plate 51 and the straight filter plate 52, and the inner diameters of the discharge ports 102 are respectively smaller than the heights of the side walls of the arc filter plate 51 and the straight filter plate 52;
through the arrangement of the structure, when the arc filter plate 51 and the straight filter plate 52 move downwards, the corresponding discharge hole 102 is opened, so that materials with different particle sizes fall down respectively, multi-stage screening and stacking of ash materials are realized, and the screening effect of the device is improved.
Referring to fig. 4 and 6, the dust settling assembly 6 includes a piston chamber 61, a sliding block 62 is connected to the inner wall of the piston chamber 61 in a sealing and sliding manner, a second spring 63 is fixedly connected between the sliding block 62 and the side wall of the piston chamber 61, an exhaust pipe 64 is communicated with the upper portion of the piston chamber 61, an air inlet pipe 65 is fixedly connected to the side wall of the exhaust pipe 64, the other end of the air inlet pipe 65 is communicated with the inner cavity of the box body 1, a U-shaped pipe 66 is detachably connected to the middle portion of the air inlet pipe 65, and a filter screen 67 is fixedly connected to the inner wall of the U-shaped pipe 66 near one end of the exhaust pipe 64;
referring to fig. 6, a first check valve is disposed inside the exhaust pipe 64 near the outlet end, a second check valve is disposed inside the intake pipe 65 near one end of the exhaust pipe 64, the side wall of the bottom of the sliding block 62 is arc-shaped, and the sliding block 62 can be abutted against and slide on the material-poking plate 42;
through the arrangement of the structure, when the kick-out plate 42 rotates to the upper side to collide with the sliding block 62, the sliding block 62 moves into the piston chamber 61 along with the rotation, at the moment, the first one-way valve is in an open state, the second one-way valve is in a closed state, so that the gas in the piston chamber 61 is discharged out through the exhaust pipe 64, then when the kick-out plate 42 and the sliding block 62 are not collided, the sliding block 62 is reset under the rebounding action of the second spring 63, at the moment, the first one-way valve is in the closed state, the second one-way valve is in the open state, so that the dust can be sucked from the interior of the box body 1 through the air inlet pipe 65, the dust is filtered by the filter screen 67 arranged in the U-shaped pipe 66, the filtered air enters the piston chamber 61, and the filtering of the dust in the box body 1 can be completed by reciprocating, the environmental quality around the device during operation has been improved to accord with the environmental protection requirement more.
Referring to fig. 2 and 3, a baffle plate 32 is fixedly connected to the bottom of the positioning plate 54 above the right end of the conveyor belt 3, the baffle plate 32 is made of elastic rubber material, the bottom of the baffle plate 32 is attached to the upper surface of the conveyor belt 3, a scraper 33 is fixedly connected to the bottom of the box 1 below the output end of the conveyor belt 3, and the scraper 33 is attached to the lower surface of the conveyor belt 3;
through the setting of above-mentioned structure, can realize the rapid transit to the ash material, improve the device's screening efficiency, can ensure moreover that can not the adhesion ash material on the conveyer belt 3, improve conveyer belt 3 neatness nature.
Referring to fig. 1-6, in the present invention, the third wheel 43 is connected to the first wheel 21 in a transmission manner, so as to drive the rotating shaft 41 to rotate and drive the material-stirring plate 42 to rotate, when the material-stirring plate 42 rotates to the lower side to contact the circular arc filter plate 51, because the length of the material-stirring plate 42 is greater than the distance from the rotating shaft 41 to the side wall of the circular arc filter plate 51, the circular arc filter plate 51 will be collided, and the circular arc filter plate 51 moves down under the retracting effect of the first spring 53, so that the material-stirring plate 42 scrapes in the circular arc filter plate 51, not only the ash material with the particle size greater than the pore size of the circular arc filter plate 51 can move to the lower end of the circular arc filter plate 51, but also the ash material with the particle size smaller than the circular arc filter plate 51 can pass through the circular arc filter plate 51 quickly, so as to increase the screening speed of the ash material, and in the process of the downward movement of the circular arc filter plate 51, through the arrangement of the linkage rod 55, the straight filter plate 52 is driven to move downwards, and when the material shifting plate 42 is separated from being in contact with the arc filter plate 51, the arc filter plate 51 and the straight filter plate 52 can simultaneously shake up and down under the resilience effect of the first spring 53, so that ash can be rapidly screened, and the screening efficiency of the device is improved; when the arc filter plate 51 and the straight filter plate 52 move downwards, the corresponding discharge ports 102 are opened, so that materials with different particle sizes fall down respectively, multi-stage screening and stacking of ash materials are realized, and the screening effect of the device is improved;
when the kick-out plate 42 rotates to the upper side to abut against the sliding block 62, the sliding block 62 moves towards the piston chamber 61 along with the rotation, at the moment, the first one-way valve is in an open state, the second one-way valve is in a closed state, so that the gas in the piston chamber 61 is discharged out through the exhaust pipe 64, then when the kick-out plate 42 and the sliding block 62 are disengaged, under the resilience action of the second spring 63, the sliding block 62 is reset, at the moment, the first one-way valve is in the closed state, the second one-way valve is in the open state, so that the dust can be sucked from the interior of the box body 1 through the air inlet pipe 65, the dust is filtered by the filter screen 67 arranged in the U-shaped pipe 66, the filtered air enters the piston chamber 61, the filtering of the dust in the box body 1 can be completed through the reciprocating operation, and the quality of the surrounding environment when the device works is improved, thereby meeting the requirement of environmental protection.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. An ash screening apparatus for use before an ash conveying system, comprising:
the improved box body structure comprises a box body (1), wherein a feeding hole (101) is fixedly connected to the upper surface of the box body (1), a driving motor (2) is fixedly connected to the side wall of the box body (1), a first rotating wheel (21) is fixedly connected to the output shaft end of the driving motor, a conveying belt (3) is fixedly connected to the bottom of the box body (1), a second rotating wheel (31) is fixedly connected to the outer end portion of a power shaft of the conveying belt (3), and the second rotating wheel (31) is in transmission connection with the first rotating wheel (21).
The material stirring component (4), the material stirring component (4) is rotationally connected with the inner wall of the box body (1), and the material stirring component (4) is used for quickly stirring materials and driving the screening part of the device;
the screening component (5) is connected with the inner wall of the box body (1) in a sealing and sliding mode, and the screening component (5) is used for performing multi-stage screening and stacking on ash;
dust fall subassembly (6), dust fall subassembly (6) and box (1) lateral wall fixed connection, dust fall subassembly (6) are used for filtering, arranging outward box (1) inside raise dust.
2. The ash screening device used before the ash conveying system according to claim 1, wherein the material stirring assembly (4) comprises a rotating shaft (41), the rotating shaft (41) is rotatably connected with the inner wall of the box body (1), a material stirring plate (42) is fixedly connected with the side wall of the rotating shaft (41), a third rotating wheel (43) is fixedly connected with the outer end of the rotating shaft (41), and the third rotating wheel (43) is in transmission connection with the first rotating wheel (21).
3. The ash screening device used before the ash conveying system according to claim 2, wherein the screening assembly (5) comprises an arc filtering plate (51) and a straight filtering plate (52), the arc filtering plate (51) and the straight filtering plate (52) are fixedly connected with first springs (53) on two sides of the bottom of the arc filtering plate (51) and the straight filtering plate (52), positioning plates (54) are fixedly connected to the bottoms of the first springs (53), the positioning plates (54) are fixedly connected with the inner wall of the box body (1), and a linkage rod (55) is fixedly connected between the arc filtering plate (51) and the straight filtering plate (52).
4. The ash screening apparatus used before the ash conveying system according to claim 3, wherein the length of the material poking plate (42) is greater than the distance from the rotating shaft (41) to the side wall of the circular arc filter plate (51), the material poking plate (42) can be attached to the side wall of the circular arc filter plate (51), the inner wall of the box body (1) above the circular arc filter plate (51) is fixedly connected with a limiting plate (7), and the limiting plate (7) is attached to the upper surface of the circular arc filter plate (51).
5. The ash screening apparatus before the ash conveying system according to claim 4, wherein the side wall of the box body (1) is provided with a discharge port (102) at the lower end of the circular arc filter plate (51) and the straight filter plate (52), respectively, and the inner diameter of the discharge port (102) is smaller than the height of the side wall of the circular arc filter plate (51) and the straight filter plate (52), respectively.
6. The ash screening device used before the ash conveying system according to claim 5, wherein the dust settling component (6) comprises a piston bin (61), the inner wall of the piston bin (61) is connected with a sliding block (62) in a sealing and sliding manner, a second spring (63) is fixedly connected between the sliding block (62) and the side wall of the piston bin (61), the upper part of the piston bin (61) is communicated with an exhaust pipe (64), the side wall of the exhaust pipe (64) is fixedly connected with an air inlet pipe (65), the other end of the air inlet pipe (65) is communicated with the inner cavity of the box body (1), the middle part of the air inlet pipe (65) is detachably connected with a U-shaped pipe (66), and the inner wall of the U-shaped pipe (66) close to one end of the exhaust pipe (64) is fixedly connected with a filter screen (67).
7. The ash screening device used before the ash conveying system according to claim 6, wherein a first check valve is arranged inside the exhaust pipe (64) close to the outlet end, a second check valve is arranged inside the air inlet pipe (65) close to one end of the exhaust pipe (64), the side wall of the bottom of the sliding block (62) is in a circular arc shape, and the sliding block (62) can be in interference sliding with the material stirring plate (42).
8. The ash screening device used before the ash conveying system according to claim 7, wherein a baffle plate (32) is fixedly connected to the bottom of the positioning plate (54) above the right end of the conveyor belt (3), the baffle plate (32) is made of elastic rubber materials, the bottom of the baffle plate (32) is attached to the upper surface of the conveyor belt (3), a scraper plate (33) is fixedly connected to the bottom of the box body (1) below the output end of the conveyor belt (3), and the scraper plate (33) is attached to the lower surface of the conveyor belt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210123273.XA CN114798430B (en) | 2022-02-09 | 2022-02-09 | Ash screening equipment used before ash conveying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210123273.XA CN114798430B (en) | 2022-02-09 | 2022-02-09 | Ash screening equipment used before ash conveying system |
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| CN114798430A true CN114798430A (en) | 2022-07-29 |
| CN114798430B CN114798430B (en) | 2023-06-27 |
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| CN114798430B (en) | 2023-06-27 |
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