Grain drying tail gas dust falling device

Abstract

The utility model relates to a grain drying tail gas dust falling device which comprises a box body, an air inlet and an air outlet are formed in the box body, and the air inlet is connected with an air outlet pipe of a grain drying device. A spraying pipe is arranged at the top end in the box body, and a precipitation water tank is arranged at the bottom end in the box body; a plurality of atomizing nozzles are arranged on the spraying pipe; the exhaust port is positioned at the upper part of the precipitation water tank; the spray pipe is connected with a water return tank through a water supply pipe; and a scum baffle is arranged between the water return tank and the precipitation water tank. Grain drying tail gas is sprayed through the atomizing spray head, dust, impurities and the like in the tail gas are caked and fall down, so that the dust falling function is achieved, and the relatively clean tail gas after dust falling is discharged to the atmosphere through the exhaust port above the box body; and after the dust-falling sewage is settled, clean water flows to the water return tank and is sprayed and recycled by the atomizing spray head in the tank body through the water supply pipe, so that the recycling of the spraying water is realized, and the energy-saving and environment-friendly effects are realized.

Description

Technical Field

[0001] The utility model relates to a dust removal device, in particular to a grain drying tail gas dust reduction device. Background Art

[0002] In order to prevent the grain from getting moldy after being stored in the granary, the grain is dried before storage. Grain dryer is an assembly of dryers, which is a general term for various equipment of grain dryers. During the process of drying grains in grain dryers, the exhaust gas contains a large amount of dust and impurities. At present, the method of dust reduction of grain dryer exhaust gas is to discharge the exhaust gas into a long pipe so that the dust particles in the exhaust gas can settle in the pipe, and then discharge the exhaust gas directly into the atmosphere. This exhaust gas treatment method not only requires a large space and equipment, but also has low dust particle settling efficiency. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the utility model proposes a grain drying tail gas dust reduction device.

[0004] The utility model solves the technical problem by adopting the following technical solution: a grain drying tail gas dust reduction device, comprising a box body, the box body is provided with an air inlet and an exhaust port, the exhaust port is arranged higher than the air inlet, and the air inlet is connected to the exhaust pipe of the grain drying device; a spray pipe is arranged at the top end of the box body, and a sedimentation water tank is arranged at the bottom end of the box body;

[0005] The spray pipe is provided with a plurality of atomizing nozzles; the atomizing nozzles face the direction of the sedimentation water tank, and the exhaust port is located at the upper part of the sedimentation water tank; the spray pipe is connected to the return water tank through a water supply pipe, and the return water tank is connected to the sedimentation water tank;

[0006] A scum baffle is arranged between the return water tank and the sedimentation water tank, and a sewage pipe is connected to one side of the sedimentation water tank, and a sewage valve is arranged on the sewage pipe.

[0007] In a preferred embodiment of the utility model, the return water tank is connected to a tap water pipe, and a water replenishment valve is provided on the tap water pipe; and a liquid level sensor is provided on the return water tank.

[0008] In a preferred embodiment of the utility model, a solenoid valve, a booster pump and a water filter are sequentially provided on the water supply pipe between the spray pipe and the return water tank.

[0009] In a preferred embodiment of the present invention, an inspection door is further provided on one side of the box body.

[0010] In a preferred embodiment of the utility model, a partition is provided between the return water tank and the sedimentation water tank, and a gap is left between the partition and the top of the return water tank; one end of the scum baffle is a baffle connecting end, and the other end is a baffle free end, and the scum baffle is arranged in the sedimentation water tank from high to low from the baffle connecting end to the baffle free end, and a gap is left between the scum baffle and the partition.

[0011] In a preferred embodiment of the present utility model, a filter screen is provided in the interval between the partition and the top end of the return water tank.

[0012] In a preferred embodiment of the utility model, a guide plate is further provided in the box body, one end of the guide plate is a guide plate connecting end, and the other end is a guide plate free end, the guide plate is inclined from high to low from the guide plate connecting end to the guide plate free end, the guide plate connecting end is located at the upper part of the air inlet and is connected to the inner wall of the box body, the guide plate free end is located in the box body, and the height of the guide plate free end matches the position of the air inlet.

[0013] In a preferred embodiment of the present invention, a support rod is provided at the free end of the guide plate and the bottom end of the box body.

[0014] The beneficial effects of the utility model are as follows: the utility model has a simple structure and occupies a small space. The grain drying tail gas is sprayed by an atomizing nozzle, and dust, impurities and the like in the tail gas are agglomerated and fall down, thereby realizing the dust reduction function and greatly improving the dust reduction efficiency of the grain drying tail gas. The relatively clean tail gas after dust reduction is discharged into the atmosphere through the exhaust port above the box body. After the sewage after dust reduction is precipitated, the clean water flows to the return water tank, and is supplied to the atomizing nozzle inside the box body for spraying and recycling through the water supply pipe, thereby realizing the recycling of the spray water and saving energy and protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0016] Figure 2 yes Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 It is a structural schematic diagram of embodiment 2 of the present utility model.

[0018] In the figure: box body 1; air inlet 101; exhaust port 102; inspection door 103; spray pipe 2; atomizing nozzle 201; sedimentation water tank 3; water supply pipe 4; solenoid valve 401; booster pump 402; water filter 403; return water tank 5; liquid level sensor 501; scum baffle 6; baffle connecting end 601; baffle free end 602; sewage pipe 7; sewage valve 701; tap water pipe 8; water supply valve 801; partition 9; filter screen 901; guide plate 10; guide plate connecting end 1001; guide plate free end 1002. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0021] Example 1: Figure 1 and Figure 2 A grain drying exhaust dust reduction device is shown, comprising a box body 1, the box body 1 is provided with an air inlet 101 and an exhaust port 102, the exhaust port 102 is arranged higher than the air inlet 101, and the air inlet 101 is connected to the exhaust pipe of the grain drying device; a spray pipe 2 is arranged at the top end of the box body 1, and a sedimentation water tank 3 is arranged at the bottom end of the box body 1;

[0022] The spray pipe 2 is provided with a plurality of atomizing nozzles 201; the atomizing nozzles 201 face the sedimentation water tank 3, and the air inlet 101 and the air outlet 102 are both located at the upper part of the sedimentation water tank 3; the spray pipe 2 is connected to the return water tank 5 through the water supply pipe 4, and the return water tank 5 is connected to the sedimentation water tank 3;

[0023] A scum baffle 6 is provided between the return water tank 5 and the settling water tank 3, and a sewage pipe 7 is connected to one side of the settling water tank 3, and a sewage valve 701 is provided on the sewage pipe 7. As a preferred embodiment, the return water tank 5 in the present application is connected to a tap water pipe 8, and a water replenishment valve 801 is provided on the tap water pipe 8; the return water tank is provided with a liquid level sensor 501. A solenoid valve 401, a booster pump 402 and a water filter 403 are provided in sequence on the water supply pipe between the spray pipe and the return water tank.

[0024] When the grain drying tail gas dust reduction device of the utility model is in use, the exhaust pipe of the grain drying device discharges the dried grain tail gas into the box body 1 through the air inlet 101. Since the tail gas of the grain drying contains a large amount of dust and impurities, when the dried grain tail gas enters the box body 1, water is atomized by the atomizing nozzle 201 on the spray pipe 2 and then sprayed downward, and mixed with the tail gas entering the box body 1 from below, so that the dust, impurities, etc. in the tail gas agglomerate and fall, thereby achieving the function of dust reduction. The atomizing spray of the atomizing nozzle 201 greatly improves the dust reduction efficiency of the grain drying tail gas. The relatively clean tail gas after dust reduction is discharged to the atmosphere from the exhaust port 102 above the box body 1, or is connected for other use. A sedimentation water tank 3 is provided at the lower part of the box body 1. After the sewage after dust precipitation is precipitated, the clean water flows to the return water tank 5. After being filtered by the water filter 403 through the water supply pipe 4, the water is returned to the atomizing nozzle 201 inside the box body 1 for recycling by the booster pump 402 and the solenoid valve 401. The sedimentation water tank 3 is connected to the tap water pipe 8. A water replenishment valve 801 is provided above the tap water pipe 8. The water replenishment valve 801 is controlled by the liquid level sensor 501 on the return water side of the recovery tank 3 and automatically replenishes water according to the liquid level. The water filter on the water supply pipe is a detachable filter, and the filter element can be replaced at any time to ensure the filtering effect of water and facilitate the recycling of water resources. A sewage discharge valve 701 is provided on one side of the bottom of the sedimentation water tank 3 to facilitate regular cleaning and maintenance.

[0025] As a preferred embodiment, an inspection door 103 is further provided on one side of the box body 1 in the present application, so that the staff can easily enter the box body 1 through the inspection door 103 to inspect and maintain the various structural components in the box body 1.

[0026] As a preferred embodiment, a partition 9 is provided between the return water tank 5 and the sedimentation water tank 3, and a spacing is left between the partition 9 and the top of the return water tank 5, that is, the spacing between the partition 9 and the top of the return water tank is a channel for the water in the sedimentation water tank to flow to the return water tank, which is convenient for the water in the sedimentation water tank 3 to flow to the return water tank 5 through the channel after sedimentation, so as to realize the re-atomization and spraying of the water source on the tail gas, realize water circulation, energy saving and environmental protection, and reduce the dust reduction cost; one end of the scum baffle 6 is a baffle connection end 601, and the other end is a baffle free end 602, and the scum baffle 6 is arranged in the sedimentation water tank 3 from the baffle connection end 601 to the baffle free end 602 from high to low, and a spacing is left between the scum baffle 6 and the partition 9; when the water in the sedimentation water tank after sedimentation flows to the return water tank, the setting of the scum baffle 6 minimizes the drift of scum to the return water tank 5, thereby ensuring the cleanliness of the water source in the recovery tank. Furthermore, a filter net 901 is provided in the gap between the partition 9 and the top of the return water tank 5. The filter net 901 filters the water in the process of flowing from the sedimentation water tank 3 to the return water tank 5, thereby reducing the filtering burden of the water path filter, improving the filtering effect, and reducing the occurrence of clogging of the atomizing nozzle.

[0027] Example 2: Figure 3 As shown, a guide plate 10 is further provided in the box body 1, one end of the guide plate 10 is a guide plate connecting end 1001, and the other end is a guide plate free end 1002, the guide plate 10 is tilted from the guide plate connecting end 1001 to the guide plate free end 1002 from high to low, the guide plate connecting end 1001 is located at the upper part of the air inlet 101, and is connected to the inner wall of the box body 1, the guide plate free end 1002 is located in the box body 1, and the height of the guide plate free end 1002 matches the position of the air inlet 101; The obliquely arranged guide plate 10 faces the air inlet 101, that is, the exhaust gas entering the interior of the box 1 from the air inlet 101 first contacts the guide plate 10, and the guide plate realizes an obstructive effect on the exhaust gas when it rises. The exhaust gas entering the box 1 from the air inlet 101 first sinks and then rises again, and the exhaust gas is sprayed by the atomizing nozzle. The obliquely arranged guide plate 10 effectively realizes the guidance and turbulence of the exhaust gas, reduces the upward speed of the exhaust gas, and improves the spraying and dust removal effect of the atomizing nozzle 201 on the exhaust gas.

[0028] As a preferred embodiment, the guide plate free end 1002 and the bottom end of the box body 1 in the present application are provided with a support rod 11, and the guide plate 10 is supported by the support rod 11 to prevent the guide plate free end 1002 from being damaged by the impact force of the exhaust gas, thereby ensuring the guide plate's guiding effect on the exhaust gas.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0030] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A grain drying tail gas dust reduction device, characterized in that: The invention comprises a box body (1), wherein the box body (1) is provided with an air inlet (101) and an air outlet (102), wherein the air outlet (102) is arranged higher than the air inlet (101), and the air inlet (101) is connected to an exhaust pipe of a grain drying device; a spray pipe (2) is provided at the top end of the box body (1), and a sedimentation water tank (3) is provided at the bottom end of the box body (1); The spray pipe (2) is provided with a plurality of atomizing nozzles (201); the atomizing nozzles (201) are oriented toward the sedimentation water tank (3), and the exhaust port (102) is located at the upper part of the sedimentation water tank (3); the spray pipe (2) is connected to the return water tank (5) through a water supply pipe (4), and the return water tank (5) is connected to the sedimentation water tank (3); A scum baffle (6) is provided between the return water tank (5) and the sedimentation water tank (3), and a sewage pipe (7) is connected to one side of the sedimentation water tank (3), and a sewage valve (701) is provided on the sewage pipe (7).

2. The grain drying tail gas dust reduction device according to claim 1, characterized in that: The return water tank (5) is connected to a tap water pipe (8), and a water supply valve (801) is provided on the tap water pipe (8); and a liquid level sensor (501) is provided on the return water tank (5).

3. The grain drying tail gas dust reduction device according to claim 2 is characterized in that: A solenoid valve (401), a booster water pump (402) and a water filter (403) are sequentially arranged on the water supply pipe (4) between the spray pipe (2) and the return water tank (5).

4. The grain drying tail gas dust reduction device according to claim 1, characterized in that: An inspection door (103) is also provided on one side of the box body (1).

5. The grain drying tail gas dust reduction device according to claim 1, characterized in that: A partition (9) is provided between the return water tank (5) and the sedimentation water tank (3), and a distance is left between the partition (9) and the top end of the return water tank (5); one end of the scum baffle (6) is a baffle connecting end (601), and the other end is a baffle free end (602); the scum baffle (6) is arranged in the sedimentation water tank (3) from high to low from the baffle connecting end (601) to the baffle free end (602), and a distance is left between the scum baffle (6) and the partition (9).

6. The grain drying tail gas dust reduction device according to claim 5, characterized in that: A filter screen (901) is provided in the space between the partition plate (9) and the top end of the return water tank (5).

7. The grain drying tail gas dust reduction device according to any one of claims 1 to 6, characterized in that: A guide plate (10) is also provided in the box body (1), one end of the guide plate (10) being a guide plate connecting end (1001) and the other end being a guide plate free end (1002), the guide plate (10) being arranged to be inclined from high to low from the guide plate connecting end (1001) to the guide plate free end (1002), the guide plate connecting end (1001) being located at the upper part of the air inlet (101) and being connected to the inner wall of the box body (1), the guide plate free end (1002) being located in the box body (1), and the height of the guide plate free end (1002) matching the position of the air inlet (101).

8. The grain drying tail gas dust reduction device according to claim 7, characterized in that: The free end (1002) of the guide plate and the bottom end of the box body (1) are provided with a support rod (11).

Images