CN112370911B

CN112370911B - Pulse bag type dust collector convenient to disassemble and maintain and used for rice processing

Info

Publication number: CN112370911B
Application number: CN202011158580.9A
Authority: CN
Inventors: 杨金; 杨如意; 张权力
Original assignee: Changzhou Ankang Machinery Co ltd
Current assignee: Changzhou Ankang Machinery Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2022-06-03
Anticipated expiration: 2040-10-26
Also published as: CN112370911A

Abstract

The invention discloses a pulse bag type dust collector convenient to disassemble and overhaul for rice processing, which comprises a box body, a filter chamber, a clean room, an ash bucket, a first cloth bag, a second cloth bag, a cross rod, a circular hole and a motor part, wherein the box body is of a cavity structure, the filter chamber and the clean room are arranged in the box body, the ash bucket is arranged in the filter chamber, a through circular hole is arranged at the joint of the clean room and the filter chamber, the open ends of the two cloth bags are arranged in the clean room, the closed end of the two cloth bags extends into the filter chamber from the circular hole, the open end of the first cloth bag is fixedly connected with the cross rod, the cross rod is driven by the motor to drive the first cloth bag to rotate at a high speed, and the clean room is provided with a pulse dust cleaning device. The invention combines the two filter bags, so that the filter bag inside rotates at high speed until the primary layer is firmly attached to the inner side of the outer side cloth bag, the primary layer is not easy to be damaged, and the high-frequency long-time ash removal can be carried out during the filtration so as to achieve the filtration with higher efficiency.

Description

Pulse bag type dust collector convenient to disassemble and maintain and used for rice processing

Technical Field

The invention relates to the technical field of dust removal, in particular to a pulse bag type dust remover for rice processing, which is convenient to disassemble and maintain.

Background

The rice processing is to separate endosperm from other parts with the smallest crushing degree of rice to prepare rice with better edible quality, a great deal of dust is generated in the process of separating husk, cortex, embryo and endosperm of the rice, and a plurality of impurities such as sand stone, soil, coal dust, iron nails, rice straw, weed seeds and the like mixed in the rice can also form dust, the treatment of the dust is particularly important in the rice processing industry, a common rice production enterprise can use a bag-type dust collector for treating the dust, and the bag-type dust collector is a dry dust filtering device and is suitable for collecting fine, dry and non-fibrous dust. The most important part of the bag type dust collector is a cloth bag which is made of woven filter cloth or non-woven felt, dust-containing gas is filtered by utilizing the filtering action of fiber fabric, after the dust-containing gas enters the bag type dust collector, dust with large particles and large specific gravity falls into a dust hopper due to the sedimentation of the gravity, and the gas containing fine dust is retained when passing through the cloth bag, so that the gas is purified. In the filtering process of the cloth bag, after the cloth bag is used for a period of time, a layer of dust is accumulated on the surface of the cloth bag due to the effects of screening, collision, detention, diffusion, static electricity and the like, the layer of dust is called as a primary layer, in the later movement process, the primary layer becomes a main filtering layer of the cloth bag, and the cloth bag with larger meshes can obtain higher filtering efficiency under the action of the primary layer. Along with the accumulation of dust on the surface of the cloth bag, the efficiency and the resistance of the dust remover are correspondingly increased, and when the pressure difference between two sides of the cloth bag is large, some fine dust particles attached to the cloth bag are extruded, so that the efficiency of the dust remover is reduced. In addition, the air volume of the dust removal system is significantly reduced due to the excessively high resistance of the dust remover. Therefore, the dust is removed in time after the resistance of the dust remover reaches a certain value. The initial layer cannot be damaged during ash removal, so that the efficiency is prevented from being reduced. Among the prior art, comparatively common deashing means carries out the deashing for using the pulsed air current, and deashing cycle length direct relation arrives the filter effect, and deashing time is short, deashing cycle is too long, and the dust on the sack can not be cleared up totally, and the dust remover just changes over to filtration state, can make the running resistance rise very fast, and the deashing time is long, and the deashing cycle is short, and the first layer on the sack can be cleared up and fall into and influence the filter effect of sack.

Disclosure of Invention

The invention aims to provide a pulse bag type dust collector for rice processing, which is convenient to disassemble and maintain and aims to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a rice processing is with pulse bag collector convenient to dismantle and overhaul, the device includes the box, and the support, the filter chamber, the toilet, the ash bucket, a sack, No. two sacks, horizontal pole, the round hole, the motor, the gas holder, pulse solenoid valve, the spray tube, air inlet and gas outlet part, the box is the cavity structure, support upper end fixed connection the box, inside filter chamber and the toilet of being equipped with of box, toilet are in the filter chamber top, be equipped with the ash bucket in the filter chamber, the ash bucket is the inverted cone type, the less one end of ash bucket cross-sectional area is equipped with the unloading valve, and the ash accumulation on the cloth can drop to the ash bucket in certain time, and the valve of opening the unloading valve again clears out the ash. A through round hole is arranged at the joint of the clean room and the filter chamber, the open end of the first cloth bag is arranged in the clean room, the closed end of the first cloth bag extends into the filter chamber from the round hole, the open end of the second cloth bag is arranged in the clean room, the closed end of the second cloth bag extends into the filter chamber from the round hole, the open end of the first cloth bag is fixedly connected with a cross rod, two sides of the cross rod are rotatably connected with the inner wall of the round hole of the clean room, a groove is arranged on the inner wall of the round hole, two ends of the cross rod are clamped in the groove, two ends of the cross rod can rotate in the circumferential direction of the groove in the groove, the middle point of the cross rod is fixedly connected with the output shaft of the motor, the motor drives the cross rod, the cross rod can drive the first cloth bag to rotate by taking the circle center as the center, a gas storage tank is arranged outside the box body, the gas outlet of the gas storage tank is fixedly connected with a pulse electromagnetic valve, one end of the pulse electromagnetic valve, which is far away from one end of the gas storage tank, is fixedly connected with one end of a spray pipe, the utility model discloses a clean room, including pulse solenoid valve, spray tube, pulse solenoid valve, filter chamber, clean room, air inlet, fan, clean air, the spray tube is kept away from pulse solenoid valve one end and is stretched into in No. one the sack, pulse solenoid valve makes the high-pressure gas in the gas holder carry out the pulse deashing through the spray tube to No. one the sack with certain pulse cycle, the filter chamber is equipped with the air inlet, the clean room is equipped with the gas outlet, and the air inlet is connected the fan and is sent the filter chamber with the air that has a large amount of dusts and filter through the sack, discharges clean air by the gas outlet again.

Furthermore, be equipped with the bag cage in the sack, No. two sack covers the sack outside, the centre of a circle coincidence of sack and No. two sack cross sections, the bag cage is the cylindrical iron stand that the reinforcing bar was made, prevents that the sack from being blown flat by high-pressure dirty gas and influencing the filter effect at the during operation, and the motor drives the sack and rotates between No. two sacks and bag cage.

Further, the gas outlet is equipped with gaseous dustiness detection device, and the device includes high-voltage electrostatic field generator, pressure sensor and pressure display, the gas outlet is equipped with high-voltage electrostatic field generator all around, the gas outlet inner wall is equipped with pressure sensor, pressure sensor electricity connection pressure display, high-voltage electric field with air ionization and then make the dust granule electrified by the enrichment on the gas outlet inner wall, pressure sensor on the inner wall passes through pressure display and shows the dust enrichment degree through the change of pressure, and then can record the air dustiness concentration of gas outlet.

Further, No. two sack are equipped with elevating gear, elevating gear includes two haulage ropes, pulley and elevator motor, two haulage rope one end with No. two sack fixed connection, the pulley is fixed in the clean room, elevator motor fixes in the clean room, No. two sack one end are kept away from to two haulage ropes are passed the pulley with the elevator motor output shaft is connected, and control elevator motor can be even with No. two sacks stretch-up to the assigned height.

Further, be equipped with the motor support in the toilet, the motor with elevator motor fixed connection the motor support, the box top is equipped with the top cap that can open, the top cap side with box swing joint sets up the top cap that can open and makes things convenient for the staff to get into inside and overhauls.

Compared with the prior art, the invention has the following beneficial effects: the invention combines the two filter bags, so that the filter bag inside rotates at high speed until the primary layer is firmly attached to the inner side of the outer side cloth bag, the primary layer is not easy to be damaged, and the high-frequency long-time ash removal can be carried out during the filtration so as to achieve the filtration with higher efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the construction of two cloth bags of the present invention;

FIG. 3 is a schematic view of the structure of the dust content detection device of the present invention;

FIG. 4 is a schematic view of the lifting device of the present invention;

FIG. 5 is a schematic view of the position of the primary layer of the present invention on a cloth bag;

FIG. 6 is a schematic view of the cross bar and circular hole connection structure of the present invention;

in the figure: 1-a box body; 2-a scaffold; 3-filtering chamber; 4-a clean room; 5-ash bucket; 51-an ash discharge valve; 6-a first cloth bag; 7-second cloth bag; 8-a cross bar; 9-round hole; 91-a groove; 10-a motor; 11-a gas storage tank; 12-a pulse electromagnetic valve; 13-a spray pipe; 14-an air inlet; 15-air outlet; 16-bag cages; 17 gas dust content detection device; 171-a high voltage electrostatic field generator; 172-a pressure sensor; 173-pressure display; 18-a lifting device; 181-a traction rope; 182-a pulley; 183-lifting motor; 19-a motor support; 20-top cover.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions: the utility model provides a rice processing is with pulse bag collector convenient to dismantle and overhaul, the device includes box 1, support 2, filter chamber 3, toilet 4, ash bucket 5, sack 6 No. two sacks 7, horizontal pole 8, round hole 9, motor 10, gas holder 11, pulse solenoid valve 12, spray tube 13, air inlet 14 and gas outlet 15 part, box 1 is the cavity structure, 2 upper end fixed connection of

support box

1, 1 inside filter chamber 3 and the toilet 4 of being equipped with of box, toilet 4 is in filter chamber 3 top, be equipped with ash bucket 5 in the filter chamber 3, ash bucket 5 is the inverted cone type, the less one end of 5 cross-sectional areas of ash bucket is equipped with unloading valve 51, and the ash on the sack accumulates can drop to the ash bucket 5 when a certain amount in, opens the valve of unloading valve 51 again and clears out the ash. A through round hole 9 is arranged at the joint of the clean room 4 and the filter chamber 3, the open end of the first cloth bag 6 is arranged in the clean room 4, the closed end of the first cloth bag 6 extends into the filter chamber 3 from the round hole 9, the open end of the second cloth bag 7 is arranged in the clean room 4, the closed end of the second cloth bag 7 extends into the filter chamber 3 from the round hole 9, the open end of the first cloth bag 6 is fixedly connected with a cross rod 8, two sides of the cross rod 8 are rotatably connected with the inner wall of the round hole 9, the inner wall of the round hole 9 is provided with a groove 91, two ends of the cross rod 8 are clamped in the groove 91, two ends of the cross rod 8 can rotate in the circumferential direction of the groove 91 in the groove 91, the output shaft of the motor 10 is fixedly connected at the midpoint of the cross rod 8, the motor 10 drives the cross rod 8, the cross rod 8 can drive the first cloth bag 6 to rotate by taking the circle center of the round hole 9 as the center, and the gas storage tank 11 is arranged outside the

box body

1, 11 gas outlet fixed connection pulse solenoid valve 12 of gas holder, 11 end fixed connection spray tube 13 one end of gas holder are kept away from to pulse solenoid valve 12, spray tube 13 is kept away from pulse solenoid valve 12 one end and is stretched into in a sack 6, pulse solenoid valve 12 makes the high-pressure gas in the gas holder 11 pass through spray tube 13 and carry out the pulse deashing to a sack 6 with certain pulse cycle, filter chamber 3 is equipped with air inlet 14, the toilet 4 is equipped with gas outlet 15, and air that air inlet 14 connects the fan and will have a large amount of dusts sends into filter chamber 3 and filters through the sack, is discharged clean air by gas outlet 15 again. A bag cage 16 is arranged in the first cloth bag 6, the bag cage 16 is a cylindrical iron frame made of steel bars, the cloth bag is prevented from being blown flat by high-pressure dust-containing gas to affect the filtering effect when in work, the second cloth bag 7 is sleeved on the outer side of the first cloth bag 6, the circle centers of the cross sections of the first cloth bag 6 and the second cloth bag 7 are overlapped, and the motor 10 drives the first cloth bag 6 to rotate between the second cloth bag 7 and the bag cage 16. Gas outlet 15 is equipped with gaseous dustiness detection device 17, and the device includes high-voltage electrostatic field generator 171, pressure sensor 172 and pressure display 173, gas outlet 15 is equipped with high-voltage electrostatic field generator 171 all around, gas outlet 15 inner wall is equipped with pressure sensor 172, pressure sensor 172 electricity connection pressure display 173, high-voltage electric field with air ionization and then make the dust particle electrified by the enrichment on gas outlet 15 inner wall, pressure sensor 172 on the inner wall shows the dust enrichment degree through the change of pressure through pressure display 173, and then can record the air dustiness concentration of gas outlet 15. No. two sack 7 are equipped with elevating gear 18, elevating gear 18 includes two haulage rope 181, pulley 182 and elevator motor 183, two haulage rope 181 one end with No. two sack 7 fixed connection, pulley 182 is fixed in the toilet 4, elevator motor 183 is fixed in the toilet 4, No. two sack 7 one end are kept away from to two haulage rope 181 and are passed pulley 182 with elevator motor 183 output shaft is connected, and control elevator motor 183 can be even with No. two sack 7 draws to the assigned height. Be equipped with motor support 19 in the toilet 4, motor 10 with elevator motor 183 fixes on the

motor support

19, 1 top of box is equipped with top cap 20 that can open, top cap 20 side with box 1 swing joint sets up top cap 20 that can open and makes things convenient for the staff to get into inside and overhauls.

The working principle of the invention is as follows: when the dust-containing gas enters the bag type dust collector, the dust with large particles and large specific gravity is settled down under the action of gravity and falls into the dust hopper 5, and the dust is blocked when the gas containing fine dust passes through the cloth bag, so that the gas is purified. After the cloth bag is used for a period of time in the filtering process, a layer of dust is accumulated on the surface of the cloth bag due to the effects of screening, collision, detention, diffusion, static electricity and the like, the layer of dust is called as a primary layer, in the later movement process, the primary layer becomes a main filtering layer of the cloth bag, and a better filtering effect can be achieved by means of the effect of the primary layer. The primary layer is cleared away in the ash removal process mainly for two reasons, the first reason is that the primary layer is shaken down due to the vibration of the pulse electromagnetic valve 12 on the cloth bag; secondly, in the ash removal process, the dust on the periphery of the cloth bag falls down due to extrusion and collision to cause damage to the primary layer and influence the filtering effect. Before the primary layer is formed, the first cloth bag 6 and the second cloth bag 7 are both new cloth bags, at the moment, the second cloth bag 7 is dropped by using the lifting motor 183, dust-containing gas is introduced into the filter chamber 3, the first cloth bag 6 is a new cloth bag, the filtering effect of the dust-containing gas passing through the first cloth bag 6 is not ideal, a large amount of dust is still contained in gas discharged from the clean room 4, when the dust-containing gas passes through the gas outlet 15, gas molecules in the air are ionized when the dust-containing gas passes through a high-voltage electrostatic field due to the high-voltage electrostatic field generator 171 arranged on the gas outlet 15, a large amount of electrons and ions are generated and move towards the two poles under the action of an electric field force, dust particles and bacteria in the gas flow are touched to charge in the moving process, the charged particles move towards polar plates with opposite charges under the action of the electric field force, aggregation is formed on the inner wall of the gas outlet 15, the pressure sensor 172 is arranged on the inner wall of the gas outlet 15, the change of the dust content of the gas discharged from the gas outlet 15 can be judged through the change of the pressure, after the gas containing dust is introduced into the gas inlet 14 for a period of time, due to the effects of screening, collision, detention, diffusion, static electricity and the like, a layer of dust is accumulated on the surface of the filter bag I, the filtering effect of the bag I6 is obviously improved after a primary layer is formed, the dust content of the gas containing dust passing through the gas outlet 15 tends to be stable after being obviously reduced, the time for forming the primary dust can be judged through the numerical value of the pressure sensor 172, when the numerical value of the pressure sensor 172 tends to be stable, the valve of the gas inlet 14 is firstly closed, then the lifting motor 183 is opened, the output shaft of the lifting motor 183 pulls the pulling rope 181 to pull the opening of the bag II 7 to be flush with the opening of the bag I6 through the pulley 182 and then stops, at the moment, the bag II 7 completely covers the bag I6, the valve of the gas inlet 14 is opened, the fan is turned on to discharge the dust-containing gas into the filter chamber 3 again, the motor 10 is turned on, the first cloth bag 6 starts to rotate at a high speed, the primary layer on the surface of the first cloth bag 6 is peeled off from the surface of the first cloth bag 6 under the action of centrifugal force, the flying direction of the primary layer is the tangential direction of the rotating direction of the first cloth bag 6, the primary layer can be completely attached to the inner surface of the second cloth bag 7 due to the existence of the second cloth bag 7, the first cloth bag 6 always keeps rotating at a high speed, the centrifugal force is slightly larger than the gravity of the primary layer and the pressure of the dust-containing gas entering from the air inlet 14, the primary layer can be always kept on the inner surface of the second cloth bag 7 and cannot be thrown out of the second cloth bag 7, after the dust-containing gas is introduced into the air inlet 14 for a period of time, the dust is gradually accumulated on the surface of the second cloth bag 7, the pulse electromagnetic valve 12 is arranged for dust removal, the dust removal period and the dust removal time can be shortened as far as possible, the primary layer is not on the outer surface of the second cloth bag 7, therefore, the falling of the dust on the outer layer of the second cloth bag 7 in the ash removal process can not influence the initial layer, and further can not influence the filtering effect of the cloth bag. When the cloth bag needs to be replaced due to aging and abrasion of the cloth bag after the dust remover works for a period of time, firstly, the valve of the air inlet 14 is closed, then the motor 10 is closed, the cloth bag 6 stops rotating at the moment, after standing for a period of time, an operator opens the top cover 20, enters the clean room 4, and takes out the cloth bag 6 and the cloth bag 7 for cleaning or replacement.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pulse bag collector is used in rice processing convenient to dismantle and overhaul which characterized in that: the device comprises a box body (1), a support (2), a filtering chamber (3), a clean room (4), an ash bucket (5), a first cloth bag (6), a second cloth bag (7), a cross rod (8), a round hole (9), a motor (10), a gas storage tank (11), a pulse solenoid valve (12), a spray pipe (13), a gas inlet (14) and a gas outlet (15) component, wherein the box body (1) is of a cavity structure, the upper end of the support (2) is fixedly connected with the box body (1), the filtering chamber (3) and the clean room (4) are arranged inside the box body (1), the ash bucket (5) is arranged in the filtering chamber (3), a penetrating round hole (9) is arranged at the joint of the clean room (4) and the filtering chamber (3), the open end of the first cloth bag (6) is arranged in the cleaning chamber (4), the closed end of the first cloth bag (6) extends into the filtering chamber (3) from the round hole (9), the open end of the second cloth bag (7) is positioned below the cross rod (8), the closed end of the second cloth bag (7) extends into the filtering chamber (3) from the round hole (9), the opening end of the first cloth bag (6) is fixedly connected with a cross bar (8), two sides of the cross bar (8) are rotatably connected with the inner wall of the round hole (9), the middle point of the cross bar (8) is fixedly connected with an output shaft of the motor (10), a gas storage tank (11) is arranged outside the tank body (1), a gas outlet of the gas storage tank (11) is fixedly connected with a pulse electromagnetic valve (12), the pulse electromagnetic valve (12) is fixedly connected with one end of a spray pipe (13) far away from the gas storage tank (11), one end of the spray pipe (13) far away from the pulse electromagnetic valve (12) extends into the first cloth bag (6), the filter chamber (3) is provided with an air inlet (14), and the clean room (4) is provided with an air outlet (15);

a bag cage (16) is arranged in the first cloth bag (6), the second cloth bag (7) is sleeved on the outer side of the first cloth bag (6), and the circle centers of the cross sections of the first cloth bag (6) and the second cloth bag (7) are overlapped;

the gas outlet (15) is provided with a gas dust content detection device (17) which comprises a high-voltage electrostatic field generator (171), a pressure sensor (172) and a pressure display (173), the high-voltage electrostatic field generator (171) is arranged around the gas outlet (15), the inner wall of the gas outlet (15) is provided with the pressure sensor (172), and the pressure sensor (172) is electrically connected with the pressure display (173);

no. two sack (7) are equipped with elevating gear (18), elevating gear (18) include two haulage rope (181), pulley (182) and elevator motor (183), two haulage rope (181) one end with No. two sack (7) fixed connection, pulley (182) are fixed in toilet (4), elevator motor (183) are fixed in toilet (4), No. two sack (7) one end are kept away from in two haulage rope (181) are passed pulley (182) with elevator motor (183) output shaft is connected.

2. The pulse bag type dust collector for rice processing convenient to disassemble and overhaul as claimed in claim 1, wherein: the ash bucket (5) is in an inverted cone shape.

3. The pulse bag type dust collector for rice processing convenient to disassemble and overhaul as claimed in claim 2, wherein: and an ash discharge valve (51) is arranged at one end of the ash bucket (5) with a smaller cross section area.

4. The pulse bag type dust collector for rice processing convenient to disassemble and overhaul as claimed in claim 1, wherein: be equipped with motor support (19) in clean room (4), motor (10) with elevator motor (183) are fixed on motor support (19).

5. The pulse bag type dust collector for rice processing convenient to disassemble and overhaul as claimed in claim 1, wherein: the top end of the box body (1) is provided with a top cover (20) which can be opened, and the side edge of the top cover (20) is movably connected with the box body (1).

6. The pulse bag type dust collector for rice processing convenient to disassemble and overhaul as claimed in claim 1, wherein: a groove (91) is formed in the inner wall of the round hole (9), and the two ends of the cross rod (8) are clamped in the groove (91).