Dry tail gas emission mechanism and purification device

Abstract

The dry tail gas emission mechanism comprises a tail gas emission pipeline communicated with an angular box, the surface of the tail gas emission pipeline is provided with a tail gas emission opening, the interior of the tail gas emission pipeline is rotationally connected with a snake-shaped cleaning piece, and the outer diameter of the cleaning piece is matched with the inner diameter of the tail gas emission pipeline; the inner wall of the tail gas exhaust pipeline is further rotationally connected with a cleaning roller, the cleaning roller extends in the axis direction of the cleaning pieces, and the outer wall of the cleaning roller abuts against the inner walls of the cleaning pieces. The grain drying tail gas purification device can continuously purify grain drying tail gas, and the continuous discharging efficiency of the drying tail gas is high.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a dry tail gas emission mechanism and a purification device. Background Art

[0002] During the grain drying process, dry gas needs to be continuously pumped into the grain drying chamber. The gas after grain drying contains a large amount of water vapor and dust. In order to meet environmental emission standards, the exhaust gas from grain drying needs to be purified.

[0003] The tail gas from grain drying contains a certain amount of waste heat, and some companies will recycle this heat through heat exchange fins. However, since the tail gas from grain drying contains a large amount of dust, solid impurities continue to accumulate on the surface of the heat exchange fins, which require manual cleaning on a regular basis, affecting the heat exchange efficiency of the heat exchange fins, increasing the burden on staff and reducing the efficiency of waste heat recovery and purification of the tail gas from grain drying. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a drying tail gas emission mechanism and a purification device, which can continuously purify the grain drying tail gas, and the continuous emission efficiency of the drying tail gas is high.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dry exhaust gas emission mechanism comprises an exhaust gas emission pipe connected to an angular box, wherein an exhaust gas emission opening is formed on the surface of the exhaust gas emission pipe, a serpentine cleaning sheet is rotatably connected inside the exhaust gas emission pipe, and the outer diameter of the cleaning sheet is matched with the inner diameter of the exhaust gas emission pipe; a cleaning roller is rotatably connected to the inner wall of the exhaust gas emission pipe, and the cleaning roller extends along the axial direction of the cleaning sheet and the outer wall of the cleaning roller abuts against the inner wall of the cleaning sheet; during the exhaust gas emission process, the cleaning sheet and the cleaning roller are controlled to rotate synchronously to realize continuous cleaning of solid tailings.

[0007] Preferably, a flexible cleaning brush is fixed on the outer surface of the cleaning sheet.

[0008] Preferably, the tail gas discharge opening is located at the top of the tail gas discharge pipe, and a tail slag discharge opening is opened at the bottom of the tail gas discharge pipe.

[0009] Preferably, a baffle assembly located outside the tail slag discharge opening is installed on the outer wall of the tail gas discharge pipe, and the baffle assembly is electrically controlled.

[0010] Preferably, the cleaning roller is located in the middle of the inner wall of the exhaust gas emission pipe.

[0011] A dry exhaust gas purification device comprises the above-mentioned dry exhaust gas emission mechanism and an exhaust gas purification box for installing the dry exhaust gas emission mechanism, a belt cleaning device is also installed inside the exhaust gas purification box, an outer wall of the belt cleaning device forms a concave first purification area, and the dry exhaust gas emission mechanism is arranged in the middle position inside the first purification area.

[0012] Preferably, a concave second purification area is formed on the inner wall of the belt cleaning device, and a cleaning device is installed outside the second purification area.

[0013] Preferably, the first purification area comprises a first top wall, a first bottom wall and a first side wall, and a squeezing device is provided at the first side wall.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The cleaning sheet can avoid blockage of the inner wall of the exhaust gas emission pipe and the exhaust gas emission opening, thereby ensuring the continuous emission of grain drying exhaust gas; at the same time, the inner wall of the cleaning sheet can be cleaned through the design of the cleaning roller, and the cleaning sheet can perform initial purification of solid impurities in the grain drying exhaust gas, reducing the burden of subsequent purification treatment; at the same time, solid impurities will not continue to accumulate on the surface of the cleaning sheet, ensuring that the overall structure can continuously purify the grain drying exhaust gas, and the continuous emission of the drying exhaust gas is efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the dry tail gas emission mechanism of the utility model.

[0017] Figure 2 The utility model structure Figure 1 Schematic diagram of the top view structure.

[0018] Figure 3 This is a schematic diagram of the AA-section structure of the structure diagram of the utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of the dry tail gas purification device of the utility model.

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the main structure.

[0021] In the figure: 100, angular box; 110, angular body; 120, ventilation window; 200, extrusion device; 210, first extrusion roller; 220, second extrusion roller; 300, cleaning device; 310, cleaning roller brush; 320, support roller; 330, unloading baffle; 400, exhaust gas purification box; 410, purification body; 420, exhaust pipe; 500, belt cleaning device; 510, cleaning belt; 520, limiting roller ; 530, first purification area; 531, first top wall; 532, first side wall; 533, first bottom wall; 540, second purification area; 541, second top wall; 542, second side wall; 543, second bottom wall; 600, dry exhaust gas emission mechanism; 610, exhaust gas emission pipe; 611, exhaust gas emission opening; 612, tailings emission opening; 620, cleaning sheet; 630, cleaning roller; 640, baffle assembly. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0024] During the grain drying process, dry gas needs to be continuously pumped into the grain drying chamber. The gas after grain drying contains a large amount of water vapor and dust. In order to meet environmental emission standards, the exhaust gas from grain drying needs to be purified.

[0025] The tail gas from grain drying contains a certain amount of waste heat, and some companies will recycle this heat through heat exchange fins. However, since the tail gas from grain drying contains a large amount of dust, solid impurities continue to accumulate on the surface of the heat exchange fins, which require manual cleaning on a regular basis, affecting the heat exchange efficiency of the heat exchange fins, increasing the burden on staff and reducing the efficiency of waste heat recovery and purification of the tail gas from grain drying.

[0026] In order to solve the above problems, refer to the attached Figure 1-Attached Figure 3 An improved drying exhaust gas emission mechanism includes an exhaust gas emission pipe 610 connected to an angular box 100, an exhaust gas emission opening 611 is opened on the surface of the exhaust gas emission pipe 610, and a serpentine cleaning piece 620 is rotatably connected inside the exhaust gas emission pipe 610, and the outer diameter of the cleaning piece 620 is adapted to the inner diameter of the exhaust gas emission pipe 610; during the continuous rotation of the cleaning piece 620, the exhaust gas emission opening 611 can be continuously cleaned, and the solid impurities accumulated at the exhaust gas emission opening 611 and the inner wall of the exhaust gas emission pipe 610 can be cleaned to avoid blockage therein, thereby ensuring that the exhaust gas can be discharged continuously and stably, and ensuring the efficiency of grain drying exhaust gas emission.

[0027] The cross-section of the cleaning sheet 620 is rectangular and has a certain width. During the continuous rotation of the cleaning sheet 620, it can adsorb some impurities in the dry exhaust gas, thereby achieving preliminary purification of impurities in the grain drying exhaust gas and reducing the difficulty of subsequent purification of the dry exhaust gas; however, solid impurities will continue to adhere to the inner wall of the cleaning sheet 620, affecting the continuous emission of the dry exhaust gas.

[0028] In order to solve the problem of clogging of the inner wall of the cleaning sheet 620, the inner wall of the exhaust gas emission pipe 610 is also rotatably connected to a cleaning roller 630, which extends along the axial direction of the cleaning sheet 620 and the outer wall of the cleaning roller 630 is against the inner wall of the cleaning sheet 620; during the exhaust gas emission process, the cleaning sheet 620 and the cleaning roller 630 are controlled to rotate synchronously to achieve continuous cleaning of solid tailings. During the synchronous rotation of the cleaning sheet 620 and the cleaning roller 630, the inner wall of the cleaning sheet 620 continues to rotate under the contact of the cleaning roller 630, thereby achieving continuous cleaning; the solid impurities accumulated on the inner wall of the cleaning sheet 620 can be cleaned in time, avoiding continuous clogging of the inner wall of the cleaning sheet 620; at the same time, the cleaning roller 630 is small in size and will not have any impact on the normal emission of dry exhaust gas.

[0029] It should be noted here that the angular box 100 here is a prior art, which is placed in the grain drying room and can directionally transport the drying gas; the angular box 100 here includes an angular body 110 and a ventilation window 120 located on the side wall of the angular body 110.

[0030] In summary, through the above-mentioned structural design, the cleaning sheet 620 can avoid blockage of the inner wall of the exhaust gas emission pipe 610 and the exhaust gas emission opening 611, thereby ensuring the continuous emission of grain drying exhaust gas; at the same time, the design of the cleaning roller 630 can clean the inner wall of the cleaning sheet 620, and the cleaning sheet 620 can perform initial purification of solid impurities in the grain drying exhaust gas, thereby reducing the burden of subsequent purification treatment; at the same time, solid impurities will not continue to accumulate on the surface of the cleaning sheet 620, thereby ensuring that the overall structure can continuously purify the grain drying exhaust gas, and the continuous emission of the drying exhaust gas is efficient.

[0031] A flexible cleaning brush is fixed on the outer surface of the cleaning sheet 620. The cleaning brush can be partially extended when rotated to the side of the exhaust gas emission opening 611, so as to perform a deeper cleaning on the exhaust gas emission opening 611, thereby avoiding continuous accumulation of impurities on the outside of the exhaust gas emission opening 611 and ensuring that dry exhaust gas can be discharged continuously and stably from the exhaust gas emission opening 611.

[0032] The tail gas discharge opening 611 is located at the top of the tail gas discharge pipe 610, and a tail slag discharge opening 612 is provided at the bottom of the tail gas discharge pipe 610. By setting the tail slag discharge opening 612, solid tail slag can be discharged from the bottom, thereby avoiding the continuous accumulation of solid tail slag in the tail gas discharge pipe 610, thereby ensuring the continuous discharge of grain drying tail gas in the tail gas discharge pipe 610; at the same time, the rotating cleaning sheet 620 can accelerate the discharge of tail slag and realize automatic processing.

[0033] A baffle assembly 640 is installed on the outer wall of the tail gas emission pipe 610 and is located outside the tail slag emission opening 612. The baffle assembly 640 is electrically controlled, and the tail slag emission opening 612 can be closed by the baffle assembly 640. In the process of centralized exhaust gas emission, the grain drying tail gas is controlled to be discharged upward from the upper tail gas emission opening 611 to achieve centralized emission of grain drying tail gas. When the tail slag continues to accumulate in the tail gas emission pipe 610 for a certain period of time, the baffle assembly 640 is opened and the tail slag is discharged from the bottom to achieve centralized cleaning of the tail slag, thereby meeting the tail gas emission requirements of the overall structure.

[0034] Please refer to the attached Figure 3 Here, the cleaning roller 630 is located in the middle position of the inner wall of the exhaust gas emission pipe 610. The cleaning roller 630 can continuously clean the inner wall of the cleaning sheet 620 from the middle position of the inner side. The position of the cleaning roller 630 is staggered with the exhaust gas emission opening 611 and the tailings emission opening 612, which can avoid affecting the normal emission of exhaust gas.

[0035] See attached Figure 4 , Attachment Figure 5A dry exhaust gas purification device comprises the above-mentioned dry exhaust gas emission mechanism 600 and an exhaust gas purification box 400 for installing the dry exhaust gas emission mechanism 600, a belt cleaning device 500 is also installed inside the exhaust gas purification box 400, the outer wall of the belt cleaning device 500 forms a concave first purification area 530, the dry exhaust gas emission mechanism 600 is arranged in the middle position inside the first purification area 530, and the belt cleaning device 500 here has a certain purification and filtering effect; the dry exhaust gas emission mechanism 600 continuously discharges the grain drying exhaust gas in the direction of the belt cleaning device 500, and the grain drying exhaust gas acts on the surface of the belt cleaning device 500 to achieve separation of solid impurities and gas, and the solid impurities act on the surface of the belt cleaning device 500, and cleaning is achieved during the directional movement of the belt cleaning device 500.

[0036] A concave second purification area 540 is formed on the inner wall of the belt cleaning device 500, and a cleaning device 300 is installed on the outer side of the second purification area 540. The cleaning device 300 can continuously clean the surface of the belt cleaning device 500 to ensure that the belt cleaning device 500 can continuously purify the exhaust gas and meet the continuous purification treatment requirements of the exhaust gas.

[0037] The cleaning device 300 here includes a support roller 320 arranged on the inner wall of the cleaning belt 510, a cleaning roller brush 310 arranged on the outer wall of the cleaning belt 510, and a unloading baffle 330 located at the bottom of the cleaning roller brush 310. During the continuous rotation of the cleaning roller brush 310, the solid impurities accumulated on the surface of the cleaning belt 510 can be cleaned to ensure the cleanliness of the surface of the cleaning belt 510, which is convenient for the subsequent continuous purification of the exhaust gas.

[0038] It should be noted here that the belt cleaning device 500 includes a plurality of limiting rollers 520 installed at predetermined points and a cleaning belt 510 mounted on the outside of the plurality of limiting rollers 520, the cleaning belt 510 having a serpentine curved area, the first purification area 530 and the second purification area 540 being alternately arranged in the curved area, and by setting a plurality of first purification areas 530 and a second purification area 540, the grain drying exhaust gas can be purified at a plurality of positions and continuously cleaned, thereby improving the efficiency of grain exhaust gas treatment.

[0039] The first purification area 530 here includes a first top wall 531, a first bottom wall 533 and a first side wall 532. An extrusion device 200 is provided at the first side wall 532. The extrusion device 200 can be used to squeeze the cleaning belt 510. Specifically, the solid impurities attached to the surface of the cleaning belt 510 are squeezed, and the moisture inside is squeezed out, so as to facilitate continuous cleaning of the surface of the cleaning belt 510; at the same time, the squeezed moisture can be quickly discharged to avoid excessive water vapor content in the exhaust gas purification box 400 and ensure the stability of the internal structure.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dry exhaust gas emission mechanism, comprising an exhaust gas emission pipe (610) connected to an angular box (100), wherein an exhaust gas emission opening (611) is formed on the surface of the exhaust gas emission pipe (610), characterized in that: A serpentine cleaning sheet (620) is rotatably connected inside the exhaust gas emission pipe (610), and the outer diameter of the cleaning sheet (620) is matched with the inner diameter of the exhaust gas emission pipe (610); a cleaning roller (630) is also rotatably connected to the inner wall of the exhaust gas emission pipe (610), and the cleaning roller (630) extends along the axial direction of the cleaning sheet (620) and the outer wall of the cleaning roller (630) abuts against the inner wall of the cleaning sheet (620); during the exhaust gas emission process, the cleaning sheet (620) and the cleaning roller (630) are controlled to rotate synchronously to realize continuous cleaning of solid tailings.

2. The dry exhaust gas emission mechanism according to claim 1, characterized in that: A flexible cleaning brush is fixed to the outer surface of the cleaning sheet (620).

3. The dry exhaust gas emission mechanism according to claim 1, characterized in that: The tail gas discharge opening (611) is located at the top of the tail gas discharge pipe (610), and a tail slag discharge opening (612) is opened at the bottom of the tail gas discharge pipe (610).

4. The dry tail gas emission mechanism according to claim 3, characterized in that: The outer wall of the tail gas discharge pipe (610) is provided with a baffle assembly (640) located outside the tail slag discharge opening (612), and the baffle assembly (640) is electrically controlled.

5. The dry exhaust gas emission mechanism according to claim 1, characterized in that: The cleaning roller (630) is located in the middle of the inner wall of the exhaust gas exhaust pipe (610).

6. A dry tail gas purification device, characterized in that: The invention comprises a dry exhaust gas emission mechanism (600) as claimed in any one of claims 1 to 5 and an exhaust gas purification box (400) for installing the dry exhaust gas emission mechanism (600), wherein a belt cleaning device (500) is also installed inside the exhaust gas purification box (400), and an outer wall of the belt cleaning device (500) is formed with a concave first purification area (530), and the dry exhaust gas emission mechanism (600) is arranged in the middle position inside the first purification area (530).

7. The dry tail gas purification device according to claim 6, characterized in that: The inner wall of the belt cleaning device (500) is formed with a concave second purification area (540), and a cleaning device (300) is installed outside the second purification area (540).

8. The dry tail gas purification device according to claim 6, characterized in that: The first purification area (530) comprises a first top wall (531), a first bottom wall (533), and a first side wall (532); an extrusion device (200) is provided at the first side wall (532).

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