CN212703490U

CN212703490U - Hopper dust absorption recovery unit

Info

Publication number: CN212703490U
Application number: CN202021438198.9U
Authority: CN
Inventors: 熊丁建; 费慨; 陆东东; 杭家辉
Original assignee: Hangzhou Ruiding Building Materials Co Ltd
Current assignee: Hangzhou Ruiding Building Materials Co Ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-03-16
Anticipated expiration: 2030-07-20

Abstract

The application discloses a hopper dust collection and recovery device, which relates to the field of powder recovery in concrete production and comprises a dust collection pipe, a dust collection box and a material return pipe, wherein the dust collection pipe is connected with the feed hopper, the dust collection box is connected with one end, away from the feed hopper, of the dust collection pipe, the material return pipe is connected to the bottom of the dust collection box and used for outputting powder in the dust collection box, and the dust collection box comprises a dust collection box body and a material return funnel which are integrally arranged from top to bottom; an exhaust fan is arranged on the dust collection box body, and the cross section of the feed back hopper is reduced from top to bottom. This application has the loss that reduces the powder and improves the effect of throwing the accuracy of material.

Description

Hopper dust absorption recovery unit

Technical Field

The application relates to the field of powder recovery in concrete production, in particular to a hopper dust collection and recovery device.

Background

In recent years, in the production process of concrete, the use of the feed hopper saves the previous hard operation that workers need to continuously feed materials at the mouth of the storage tank for a long time. In addition, in the manual feeding process, raw materials containing powder materials such as cement, fine sand and the like are very easy to fly, and can permeate into a production workshop along an open port of the storage tank, so that the workshop environment is polluted, and the health of production workers is also harmed. Meanwhile, unnecessary material loss is increased, and the feeding accuracy is reduced.

SUMMERY OF THE UTILITY MODEL

To the defect that current production condition exists, this application provides a hopper dust absorption recovery unit.

The application provides a hopper dust absorption recovery unit has adopted following technical scheme:

a hopper dust collection and recovery device comprises a dust collection pipe connected with a feed hopper, a dust collection box connected with one end of the dust collection pipe far away from the feed hopper, and a material return pipe connected with the bottom of the dust collection box and used for outputting powder in the dust collection box, wherein the dust collection box comprises a dust collection box body and a material return funnel which are integrally arranged from top to bottom; an exhaust fan is arranged on the dust collection box body, and the cross section of the feed back hopper is reduced from top to bottom.

Through adopting above-mentioned technical scheme, can make the powder that adheres to on the feeder hopper inner wall retrieve and continue to use through hopper dust absorption recovery unit, reduce the loss of powder and improved the precision of feeding.

Preferably, a spiral conveying rod is additionally arranged in the feed back pipe, and the feed back pipe is obliquely and downwards arranged from one end connected to the feed back hopper.

Through adopting above-mentioned technical scheme, can make the powder transport backmixing machine in the feed back funnel more stable high-efficient through the auger delivery pole, and use the auger delivery pole can reduce the residue of the powder in the feed back funnel.

Preferably, the dust suction pipe is a transparent corrugated pipe, and the dust suction pipe is detachably connected with the feed back hopper.

Through adopting above-mentioned technical scheme, be convenient for observe the clearance of state in order to facilitate the use back in the bellows.

Preferably, a vibrator is mounted on the side wall of the feed back hopper.

By adopting the technical scheme, the possibility that powder is attached to the inner walls of the dust collection box body and the return hopper can be reduced.

Preferably, a cleaning assembly is additionally arranged in the dust collection box and comprises a water pipe, a plurality of spray heads, a conveying pipe, a water tank and a water pump, wherein the water pipe is fixed on the inner wall of the dust collection box and is arranged around the circumference of the dust collection box in a circle; the conveying pipe penetrates through the side wall of the dust collection box.

Through adopting above-mentioned technical scheme, can wash dust collection box and feed back funnel after using, be convenient for use next time.

Preferably, the feed back hopper is connected with the feed back pipe through a tee joint, the tee joint is connected with a drain pipe, and a switching valve is arranged on the tee joint.

Through adopting above-mentioned technical scheme, after using, adjust the diverter valve and open the drain pipe, the produced sewage of discharge by clean.

Preferably, a heating pipe is additionally arranged on the dust collection box body; one end of the heating pipe is positioned in the dust collection box body, and the other end of the heating pipe penetrates through the side wall of the dust collection box body and is connected with a hot air generating device through an air pump fixed on the upper surface of the dust collection box body.

By adopting the technical scheme, after cleaning, the inside of the device after cleaning can be air-dried by hot air, so that the device is convenient to use next time.

Preferably, the dust collection box side is provided with a material cleaning port, the material cleaning port is rotatably connected with an access door for the airtight material cleaning port, and the airtight access door is provided with a glass window.

Through adopting above-mentioned technical scheme, be convenient for observe the inside condition of device, be convenient for the inside clearance of manual work when necessary simultaneously.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the dust attached to the inner wall in the feed hopper is absorbed by the dust absorption pipe, and then the dust is recycled into the stirrer through the material return hopper and the material return pipe, so that the material loss is reduced, and the feeding accuracy in processing is improved;

2. the vibrator can reduce the dust attached to the feed back hopper and the dust collection box body;

3. through water pump, water pipe and shower nozzle, can clean dust collection box body and feed back funnel after using, the use of being convenient for next time.

Drawings

FIG. 1 is a schematic view of the overall structure of a hopper dust absorption and recovery device and a concrete mixing device according to an embodiment of the present application;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic overall structure diagram of the hopper dust collection and recovery device.

Description of reference numerals: 1. a weighing hopper; 2. a feed hopper; 3. a blender; 4. a dust collection pipe; 5. a dust collection box; 51. a dust collection box body; 511. an exhaust fan; 512. an air pump; 513. a hot gas generating device; 514. heating a tube; 515. cleaning a material port; 516. an access door; 517. a glass window; 52. a material returning hopper; 521. a vibrator; 53. a cleaning assembly; 531. a water pipe; 532. a water pump; 533. a spray head; 534. a water tank; 535. a delivery pipe; 6. a material return pipe; 61. a screw conveying rod; 62. opening and closing a valve; 7. a tee joint; 71. a switching valve; 72. and a water discharge pipe.

Detailed Description

The embodiment of the application discloses hopper dust absorption recovery unit.

Referring to fig. 1, the hopper dust collection and recovery device is installed on a concrete mixing apparatus. The concrete mixing device comprises a weighing hopper 1, a feed hopper 2 connected to the bottom of the weighing hopper 1 and a mixer 3 connected to the bottom of the feed hopper 2.

The hopper dust collection device comprises a dust collection box 5, a dust collection pipe 4 and a material return pipe 6. When in use, the powder attached to the inner wall of the feed hopper 2 enters the dust collection box 5 through the suction of the dust collection pipe 4 and is then recycled to the stirrer 3 through the material return pipe 6 for use.

The dust box 5 includes a dust box body 51 and a return hopper 52 integrally arranged from top to bottom. An exhaust fan 511 is connected to the side wall of the dust collection box body 51, so as to form negative pressure in the dust collection box body 51. The feed back funnel 52 is an inverted quadrangular frustum pyramid with a cross section which is reduced from top to bottom, and a vibrator 521 is connected to the side wall.

The dust absorption pipe 4 is arranged horizontally, and in order to observe dust absorption conditions conveniently, the material return pipe 4 is a transparent corrugated pipe. One end of the dust suction pipe 4 is connected to the side wall of the feed hopper 2, and the other end is connected to a fixed pipe on the side wall of the feed back hopper 52. The bellows passes through flange joint with fixed pipe, and still is connected with on-off valve 62 on the fixed pipe, is convenient for open or close fixed pipe.

One end of the material return pipe 6 is connected to the bottom of the material return funnel 52, the other end is arranged above the stirring machine 3, and the material return pipe 6 is arranged obliquely downwards from one end connected to the material return funnel 52. The feed back pipe 6 is internally provided with a spiral conveying rod 61 which is convenient for inputting the powder in the feed back hopper 52 into the stirrer 3.

With reference to fig. 1 and 2, a cleaning assembly 53 is additionally provided on the dust box body 51 to clean the residual powder in the material return hopper 52 after long-term use. The cleaning assembly 53 includes a water pipe 531, a spray head 533, a delivery pipe 535, a water pump 532, and a water tank 534.

The water pipe 531 is horizontally disposed inside the dust collection box body 51, and the water pipe 531 is disposed around the dust collection box body 51. The nozzles 533 are uniformly distributed on the lower portion of the water pipe 531 along the circumferential direction of the water pipe 531, and the nozzles 533 face the inner wall of the dust collection box 51. One end of the duct 535 is connected to the water pipe 531, and the other end passes through the dust suction case 51 and is connected to the water tank 534 by the water pump 532. The water tank 534 is fixed on the top of the dust suction box body 51, so that the operator can add water conveniently. When the water pump 532 is started, water is sprayed from the nozzle 533 to the inner wall of the dust collection box body 51, thereby cleaning the powder attached to the inner wall of the dust collection box body 51.

In order to discharge the cleaned sewage, the return hopper 52 is connected with the return pipe 6 through a tee joint 7, and the tee joint 7 is also connected with a drainage pipe 72. The tee joint 7 is provided with a switching valve 71, and the connection relation among the return hopper 52, the return pipe 6 and the water discharge pipe 72 can be adjusted through the switching valve 71. When the sewage needs to be discharged, the switching valve 71 is rotated to enable the feed back hopper 52 to be communicated with the drain pipe 72, and the sewage with powder is discharged from the drain pipe 6; in actual operation, the part of sewage is collected and recycled as a concrete manufacturing raw material. When the recovery of the powder is required, the switching valve 71 is rotated to connect the return hopper 52 with the return pipe 6.

Referring to fig. 3, in order to use the cleaned dust collection device as soon as possible, a heating pipe 514 for drying the insides of the dust collection box 51 and the return hopper 52 is additionally provided inside the dust collection box 51. One end of the heating pipe 514 passes through the sidewall of the dust collection box body 51 and is connected with a hot air generating device 513 through an air pump 512, and a pipe opening of one end of the heating pipe 514 positioned inside the dust collection box body 51 is arranged downwards. The hot air generating device 513 is started, and the air pump 512 and the air extractor 511 are started, and hot air enters the dust collection box body 51 through the heating pipe 514 under the pressure of the air pump 512 and the air extractor 511 to dry the inner walls of the dust collection box body 51 and the feed back hopper 52.

In order to facilitate the determination of whether cleaning is needed or not and the inspection after cleaning, a cleaning port 515 is formed in the side surface of the dust collection box body 51, an access door 516 for sealing the cleaning port 515 is rotatably connected to the cleaning port 515, and a glass window 517 is arranged on the access door 516.

The implementation principle of the embodiment 1 is as follows:

when the powder material weighing device is used, the weighing hopper 1 pours weighed powder materials into the feeding hopper 2 and enters the stirring machine 3 through the feeding hopper 2, the opening and closing valve 62 is opened to communicate the dust suction pipe 4 with the material return hopper 52, the exhaust fan 511 is opened to generate negative pressure, and the powder materials attached to the feeding hopper 2 are sucked into the material return hopper 52 and the dust suction box body 51 through the material suction pipe 4. The powder adhered to the inner wall is shaken off by the vibration of the vibrator 521 and conveyed to the mixer 3 through the screw conveying rod 61 in the material return pipe 6 for recycling.

After a period of use, the dust suction pipe 4 is observed to determine whether cleaning is needed, and if the cleaning is needed, the connection with the feed back hopper 52 is removed, and the dust suction pipe 4 is cleaned. The residual conditions in the dust suction box body 51 and the return hopper 52 are determined through the glass window 517 and the access door 516, and when cleaning is needed, the switching valve 71 is adjusted to connect the return hopper 52 with the drain pipe 72, and the connection between the dust suction pipe 4 and the return hopper 52 is cut off by closing the opening and closing valve 62. By turning on the water pump 532, the water in the water tank 534 is sprayed toward the inner wall of the dust suction box body 51 through the delivery pipe 535 and the water pipe 531 by the spray head 533, and the residual powder is washed and discharged through the water discharge pipe 72. After the cleaning, the air pump 512, the hot air generator 513 and the exhaust fan 511 are turned on, hot air is blown into the dust collection box body 51 and the return hopper 52 through the heating pipe 514 to dry the moisture, and the air with the water vapor is discharged to the outside through the exhaust fan 511, so that the air can be used next time.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a hopper dust absorption recovery unit which characterized by: the dust collection device comprises a dust collection pipe (4) connected with a feed hopper (2), a dust collection box (5) connected with one end, far away from the feed hopper (2), of the dust collection pipe (4), and a material return pipe (6) connected with the bottom of the dust collection box (5) and used for outputting powder in the dust collection box (5), wherein the dust collection box (5) comprises a dust collection box body (51) and a material return hopper (52) which are integrally arranged from top to bottom; an exhaust fan (511) is arranged on the dust collection box body (51), and the cross section of the feed back hopper (52) is arranged in a narrowing mode from top to bottom.

2. The hopper dust collection and recovery device as claimed in claim 1, wherein: a spiral conveying rod (61) is additionally arranged in the material return pipe (6), and the material return pipe (6) is obliquely and downwards arranged from one end connected to the material return hopper (52).

3. The hopper dust collection and recovery device as claimed in claim 1, wherein: the dust absorption pipe (4) is a transparent corrugated pipe, and the dust absorption pipe (4) is detachably connected with the feed back hopper (52).

4. The hopper dust collection and recovery device as claimed in claim 1, wherein: and a vibrator (521) is arranged on the side wall of the feed back hopper (52).

5. The hopper dust collection and recovery device as claimed in claim 1, wherein: a cleaning assembly (53) is additionally arranged in the dust collection box body (51), the cleaning assembly (53) comprises a water pipe (531) which is fixed on the inner wall of the dust collection box body (51) and is arranged around the circumference of the dust collection box body (51), a plurality of spray heads (533) which are connected with the water pipe (531) and face the inner wall of the dust collection box body (51), a delivery pipe (535) communicated with the water pipe (531), a water tank (534) which is connected with one end, far away from the water pipe (531), of the delivery pipe (535), and a water pump (532) which is arranged between the water tank (534) and the delivery pipe (535); the duct (535) is disposed through a side wall of the dust suction box body (51).

6. The hopper dust collection and recovery device as claimed in claim 5, wherein: the feed back hopper (52) is connected with the feed back pipe (6) through a tee joint (7), the tee joint (7) is further connected with a drain pipe (72), and a switching valve (71) is arranged on the tee joint.

7. The hopper dust collection and recovery device as claimed in claim 6, wherein: a heating pipe (514) is additionally arranged on the dust collection box body (51); one end of the heating pipe (514) is positioned in the dust collection box body (51), and the other end of the heating pipe penetrates through the side wall of the dust collection box body (51) and is connected with a hot air generating device (513) through an air pump (512) fixed on the upper surface of the dust collection box body (51).

8. The hopper dust collection and recovery device as claimed in claim 1 or 7, wherein: clear material mouth (515) have been seted up to dust absorption box (51) side, it is connected with access door (516) of airtight clear material mouth (515) to rotate on clear material mouth (515), be provided with glass window (517) on access door (516).