CN220176443U - Waste gas dust removing device for grain dryer - Google Patents

Abstract

The utility model discloses an exhaust gas dust removing device for a grain dryer, which is provided with a box shell and a transmission belt device, wherein the transmission belt body of the transmission belt device is in a grid shape, hot and humid air exhausted from the grain dryer passes through the transmission belt body, dust and other impurities are hung on the grid and cleaned by a first brush, a dirt collecting box is arranged below the brush, a water spraying pipe is arranged above the brush, and the impurities enter a dirt collecting box through the dirt collecting box; the inner side of the bottom plate of the case shell is provided with a slope surface, smaller dust particles can slide down to the bottom of the slope at the position, a hairbrush II is arranged at the lower end of the slope surface in parallel along the side line, a liquid level meter is arranged at the lower edge of the adjacent side wall of the lower end of the slope surface, and when the liquid level reaches a proper level, a driving motor of the hairbrush II is started to mix dust and water and discharge the dust and water through a liquid discharge valve below the liquid level meter. The waste gas dust removal device is suitable for treating waste gas exhausted by the grain dryer, and the treated clean hot air can be recycled by waste heat or directly emptied, so that dust pollution can be reduced.

Description

Waste gas dust removing device for grain dryer

Technical Field

The utility model relates to the field of grain drying equipment, in particular to an exhaust gas dust removing device for a grain dryer.

Background

Technical background: patent No. 202121144820X, patent name "a mobile dual-purpose drying apparatus for continuous circulation of grain and cereal" discloses: the drying bin of the grain drying equipment is provided with an air inlet pipe and an air outlet pipe, the air inlet pipe is used for providing hot air for drying grains, the air outlet pipe is used for discharging damp and hot air with relatively low temperature, the damp and hot air still has higher temperature compared with the ambient air, and if the waste heat cannot be recycled, the waste heat is dissipated in the environment, so that waste is caused.

The wet and hot air has high dehumidification degree, dust, flying dust, flock and plant tissue fragments on the surface of grains are mixed, the heat is not suitable for direct utilization, and a heat exchanger is generally adopted for heat recovery and exchanges heat with a low-temperature gas source such as air, so that the high-temperature air is obtained and used as a heat source for further utilization. The heat exchanger generally has certain cleaning requirements on a heat exchange air source, such as a common plate heat exchanger, in order to improve the heat exchange efficiency, the distance between the plates is smaller, and fine dust, flying dust and blade fragments in hot and humid air can block the heat exchanger, so that the heat exchange efficiency is reduced. Therefore, it is particularly necessary to provide a cleaning device for cleaning the hot and humid air discharged from the air outlet duct of the drying device.

On the other hand, if the hot and humid air exhausted from the grain dryer is directly emptied without waste heat recovery, impurities thereof are discharged into the environment, and the environment is polluted.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an exhaust gas dust removing device for a grain dryer, which is used for removing impurities such as dust of hot and humid air discharged from a drying tower. The wet and hot air is convenient to further use, and is the preparation work for heat energy recovery; or prevent the dust and other impurities carried by the hot and humid air from being directly discharged into the air, and pollute the environment.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

an exhaust gas dust removing device for a grain dryer is provided with a box shell and a transmission belt device; the driving shaft roller of the driving belt device is arranged in the box shell, and a part of the driven shaft roller of the driving belt device is arranged outside the box shell; the transmission belt body of the transmission belt device is in a uniform grid shape, and the transmission belt body is matched with the box shell in the box shell; the driven shaft roller is provided with a first hairbrush in the direction away from the box shell, and the axis of the driven shaft roller is parallel to the axis of the first hairbrush; the driven shaft roller and the first brush are rotatably arranged on the supporting plate, and the supporting plate is fixedly connected with the box shell; an air inlet is formed in the middle of the top end of the box shell, and an air outlet is formed in the lower part of the box shell, which is positioned on the driving belt device; a dirt collecting box is arranged below the contact part of the driven shaft roller and the hairbrush, and the dirt collecting box is fixedly connected with the box shell; a dirt collecting box is arranged below the dirt collecting box; the driving shaft roller is connected with a first motor, and the first motor is fixedly arranged on the box shell; the first hairbrush is connected with a second motor, and the second motor is fixedly arranged on the box shell.

Preferably, a water spraying pipe is arranged above the driven shaft roller and the first hairbrush, the axial direction of the water spraying pipe is parallel to the axial direction of the first hairbrush, a plurality of small holes are uniformly formed in the lower end of the water spraying pipe, the water spraying pipe is fixedly connected to the box shell, and the water spraying pipe is connected with a power water source.

Preferably, a slope is arranged on the inner side of the bottom plate of the case, the air outlet is arranged above the high end of the slope, a second hairbrush is arranged in parallel near the low end of the slope according to the edge line, and two ends of the second hairbrush are rotatably arranged on the case; the brush II is connected with a motor III which is fixedly arranged on the box shell; a liquid level meter is arranged at the lower edge of the side wall connected with the lower end of the slope; a liquid discharge valve is arranged below the liquid level meter.

Preferably, the dirt collecting box is connected with a filter for providing a water source for the power water source.

(III) beneficial effects

The utility model provides an exhaust gas dust removing device for a grain dryer. The beneficial effects are as follows:

the waste gas dust removing device for the grain dryer is provided with a driving belt device, wherein the driving belt body of the driving belt device is in a grid shape, particles such as dust in hot and humid air discharged from the grain dryer can be hung on the grid, cleaned by a brush, and then collected by a dirt collecting box below the brush; some falling dust passes through the driving belt body and falls to the bottom of the waste gas dust removing device, the bottom is provided with a slope surface, dust is convenient to collect, as the hot humid air is partially condensed in the box shell and flows to the slope bottom of the box shell, when the water at the bottom of the box reaches a certain height, the brush arranged at the slope bottom is started, the bottom of the box shell is cleaned, and dust and water are mixed into muddy water to be discharged out of the box shell and then collected. The dust and mud collected above is convenient for collection, and then harmless treatment is carried out. The waste gas dust removing device can effectively clean dust and the like in hot and humid air discharged from the grain dryer, and the collected dust and mud are convenient to collect; the wet and hot air after convenient treatment is further subjected to heat recovery, or dust pollution caused by direct emptying of the wet and hot air is reduced.

Drawings

FIG. 1 is a schematic elevational view of the structure of the present utility model;

FIG. 2 is a schematic side view of the structure of the present utility model;

FIG. 3 is a schematic perspective view of a belt assembly according to the present utility model;

FIG. 4 is a schematic diagram of the utility model for filtering and reutilizing waste water.

In the figure, a 1-box shell, a 11-supporting plate, a 12-air inlet, a 13-air outlet, a 14-slope, a 2-driving belt device, a 21-driving shaft roller, a 22-driven shaft roller, a 23-driving belt body, a 3 a-brush I, a 3 b-brush II, a 4-dirt collecting box, a 5-dirt collecting box, a 6 a-motor I, a 6 b-motor II, a 6 c-motor III, a 7-water spraying pipe, a 71-small hole, an 8-power water source, a 9-liquid level meter, a 10-liquid discharge valve and a 20-filter.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In describing embodiments of the present utility model, it should be noted that, unless otherwise explicitly indicated and limited thereto, the terms "coupled," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In the description of the embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "side", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

Referring to fig. 1-3, the embodiment of the utility model provides a technical scheme: an exhaust gas dust removing device for a grain dryer is characterized by comprising a case shell 1 and a transmission belt device 2; the driving shaft roller 21 of the driving belt device 2 is arranged in the case 1, and a part of the driven shaft roller 22 of the driving belt device 2 is arranged outside the case 1; the driving belt body 23 of the driving belt device 2 is in a uniform grid shape, and the driving belt body 23 is matched with the box shell 1 in the box shell 1; the driven shaft roller 22 is provided with a first hairbrush 3a in a direction away from the case 1, and the axis of the driven shaft roller 22 is parallel to the axis of the first hairbrush 3 a; the driven shaft roller 22 and the first hairbrush 3a are oppositely provided with support plates 11 on two sides, the driven shaft roller 22 and the first hairbrush 3a are rotatably arranged on the support plates 11, and the support plates 11 are fixedly connected with the case 1; an air inlet 12 is formed in the middle of the top end of the box shell 1, and an air outlet 13 is formed in the lower part of the box shell 1, which is positioned on the driving belt device 2; a dirt collecting box 4 is arranged below the contact part of the driven shaft roller 22 and the first hairbrush 3a, and the dirt collecting box 4 is fixedly connected to the box shell 1; a dirt collecting box 5 is arranged below the dirt collecting box 4; the driving shaft roller 21 is connected with a motor I6 a, and the motor I6 a is fixedly arranged on the box shell 1; the first hairbrush 3a is connected with a second motor 6b, and the second motor 6b is fixedly arranged on the case 1. What needs to be specifically stated is: the arrangement of the driven shaft roller 22 outside the casing 1 has the advantage of facilitating observation of the constitution, the amount of generation, and the effect of the treatment of the foreign matter such as dust. The driving shaft roller 21 and the driven shaft roller 22 are arranged from inside to outside, so that a window is opened at the joint of the box shell 1 and the driving belt device 2, so that part of hot humid air leaks out of the window, but because the driving belt body 23 and the driven shaft roller 23 are blocked, the overflow space is smaller, the realization of the main body function is not influenced, and a part of the driven shaft roller 22 is arranged outside the box shell, which means that the other part is positioned in the box shell, so that the overflow space is reduced; the driving shaft roller 21, the driven shaft roller 22, the hairbrush one 3a, the motor one 6a and the motor two 6b of the driving belt device 2 all adopt corresponding components in the prior art.

Referring to fig. 1-2 and 4, in this embodiment, a water spray pipe 7 is disposed above the driven shaft roller 22 and the first brush 3a, the water spray pipe 7 is axially parallel to the first brush 3a, a plurality of small holes 71 are uniformly disposed at the lower end of the water spray pipe 7, the water spray pipe 7 is fixedly connected to the case 1, and the water spray pipe 7 is connected to the power water source 8. What needs to be specifically stated is: the water spraying is used for avoiding dust flying, enhancing the collection effect and reducing the environmental pollution; the power water source 8 is a prior art device, such as a water pump, capable of providing spray water and spray pressure to the spray pipe 7.

Referring to fig. 2, in the embodiment, a slope 14 is disposed on the inner side of the bottom plate of the casing 1, the air outlet 13 is disposed above the high end of the slope 14, two brushes 3b are disposed in parallel near the low end of the slope 14 along a border, and two ends of the two brushes 3b are rotatably disposed on the casing 1; the second hairbrush 3b is connected with a third motor 6c, and the third motor 6c is fixedly arranged on the case 1; the lower edge of the side wall connected with the lower end of the slope surface 14 is provided with a liquid level meter 9; a drain valve 10 is arranged below the liquid level meter 9. What needs to be specifically stated is: the brush II 3b, the motor III 6c and the liquid discharge valve 10 are all components or devices in the prior art.

Referring to fig. 4, in the present embodiment, a filter 20 is connected to the dirt collecting box 5 for providing water for the power water source 8. What needs to be specifically stated is: the filter 20 is a component of technology.

The working principle and the use flow of the utility model are as follows: when in use, the wet and hot air exhausted from the dryer enters the case 1 through the air inlet 11 of the case 1; starting a motor I of the driving belt device 2; the hot and humid air passes through the driving belt body 23 of the driving belt device 2, and the driving belt body 23 is arranged in a grid shape and can hang dust and other impurities in the hot and humid air; the impurity is transmitted to a driven shaft roller 22 of the driving belt device 2, a first brush is arranged near the driven shaft roller 23, a second motor 6b of the first brush 3a is started, and the first brush 3a cleans the impurity attached to the driving belt body 23; a dirt collecting box 4 is arranged below the hairbrush, and a dirt collecting box 5 is arranged below the dirt collecting box 4 to collect impurities; a water spraying pipe 7 is arranged above the first hairbrush, a plurality of small holes 71 are formed in the lower end of the water spraying pipe 7, the water spraying pipe 7 is connected with a power water source 8, and the water spraying pipe sprays to the contact part of the driven shaft roller 22 and the first hairbrush 3a, so that the diffusion of impurities to air and the pollution to the environment are avoided; the dirt collecting box 5 is connected with a filter 20, and the collected water and impurity mixture can be used for supplying water for the power water source 8 after being filtered; the inside of the bottom plate of the box shell 1 is provided with a slope surface 14, smaller dust particles pass through a grid of a driving belt body 23, fall off to the lower end of the slope surface 14, partial hot humid air is condensed and flows to the lower end of the slope surface 14, brushes two 3b are arranged in parallel along a side line near the lower end of the slope surface 14, a liquid level meter (9) is arranged at the lower edge of the adjacent side wall of the lower end of the slope surface 14, when a proper liquid level is reached, a motor three 6c of the brushes two 3b is started, the operation is carried out for a plurality of seconds, dust and water are mixed, a liquid discharge valve (10) positioned below the liquid level meter (9) is opened, and the liquid is discharged, so that liquid flow falls into the dirt collection box (5) when the liquid discharge is carried out by reasonably setting the size and distribution of the dirt collection box 5.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (4)

1. An exhaust gas dust removing device for a grain dryer is characterized by comprising a case (1) and a transmission belt device (2); the driving shaft roller (21) of the driving belt device (2) is arranged in the box shell (1), and a part of the driven shaft roller (22) of the driving belt device (2) is arranged outside the box shell (1); the transmission belt body (23) of the transmission belt device (2) is in a uniform grid shape, and the transmission belt body (23) is matched with the box shell (1) in the box shell (1); the driven shaft roller (22) is provided with a first hairbrush (3 a) in a direction away from the box shell (1), and the axis of the driven shaft roller (22) is parallel to the axis of the first hairbrush (3 a); the driven shaft roller (22) and the first hairbrush (3 a) are oppositely provided with supporting plates (11), the driven shaft roller (22) and the first hairbrush (3 a) are rotatably arranged on the supporting plates (11), and the supporting plates (11) are fixedly connected with the box shell (1); an air inlet (12) is formed in the middle of the top end of the box shell (1), and an air outlet (13) is formed in the lower part of the box shell (1) located at the driving belt device (2); a dirt collecting box (4) is arranged below the contact part of the driven shaft roller (22) and the first hairbrush (3 a), and the dirt collecting box (4) is fixedly connected to the box shell (1); a dirt collecting box (5) is arranged below the dirt collecting box (4); the driving shaft roller (21) is connected with a motor I (6 a), and the motor I (6 a) is fixedly arranged on the box shell (1); the first hairbrush (3 a) is connected with a second motor (6 b), and the second motor (6 b) is fixedly arranged on the case (1).

2. The exhaust gas dust removing device for a grain dryer according to claim 1, wherein a water spraying pipe (7) is arranged above the driven shaft roller (22) and the first hairbrush (3 a), the axial direction of the water spraying pipe (7) is parallel to the axial direction of the first hairbrush (3 a), a plurality of small holes (71) are uniformly formed in the lower end of the water spraying pipe (7), the water spraying pipe (7) is fixedly connected to the case (1), and the water spraying pipe (7) is connected with a power water source (8).

3. The exhaust gas dust removing device for the grain dryer according to any one of claims 1 to 2, wherein a slope (14) is arranged on the inner side of a bottom plate of the case (1), the air outlet (13) is arranged above the high end of the slope (14), a second brush (3 b) is arranged near the low end of the slope (14) in parallel according to a side line, and two ends of the second brush (3 b) are rotatably arranged on the case (1); the second hairbrush (3 b) is connected with a third motor (6 c), and the third motor (6 c) is fixedly arranged on the case (1); the lower edge of the side wall connected with the lower end of the slope (14) is provided with a liquid level meter (9); a liquid discharge valve (10) is arranged below the liquid level meter (9).

4. An exhaust gas dust removing device for a grain dryer according to claim 2, characterized in that the dirt collecting box (5) is connected with a filter (20) for providing a water source for the power water source (8).