Coal yard waste gas recovery equipment

Abstract

The utility model discloses coal yard waste gas recovery equipment, and relates to the field of waste gas recovery equipment. The device comprises a waste gas pressurization centrifugal fan and a base, a gas inlet pipe is arranged on one side of the waste gas pressurization centrifugal fan, and an exhaust pipe is arranged on the outer wall of the waste gas pressurization centrifugal fan. According to the coal yard waste gas recovery equipment, the connecting box is arranged at the gas inlet pipe of the waste gas pressurization centrifugal fan, the arrangement heights of an inlet and an outlet at the connecting box are different, and a plurality of groups of filter plates with different angles are arranged in the connecting box, so that the path of waste gas entering the waste gas pressurization centrifugal fan is prolonged and controlled; therefore, the flow rate of the waste gas is delayed, the waste gas is prevented from directly colliding with internal equipment of the waste gas pressurization centrifugal fan under the extraction of large external force, and the service life of the waste gas pressurization centrifugal fan is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas recovery equipment, in particular to waste gas recovery equipment in a coal yard. Background Art

[0002] Patent [CN202122767137.8] is specifically a waste gas recovery and utilization system for a fully enclosed coal yard. It adds a waste gas booster fan to the coal yard and adjusts the operating frequency of the waste gas booster fan in the coal yard through a PLC controller according to the pressure, temperature, dust concentration, carbon monoxide concentration, methane concentration and oxygen concentration in the fully enclosed coal yard, thereby realizing the waste gas recovery and reuse in the fully enclosed coal yard. It not only completely solves the problem of unorganized emissions from coal yards that pollute the environment, but is also conducive to the circulation of airflow in the coal yard and improves the working environment in the coal yard. At the same time, it also reduces the problem of excessive difference in calorific value between coal entering the factory and coal entering the furnace.

[0003] The exhaust gas booster fan is mainly used to connect various devices through pipes. However, when the exhaust gas booster fan is extracting exhaust gas from the coal yard, the exhaust gas booster fan itself will be subjected to a large impact force, which makes the exhaust gas booster fan easy to be damaged and affects the stable recovery of exhaust gas from the coal yard.

[0004] The main reason for the above problems is that the exhaust gas conveying pipe is directly connected to the air inlet pipe arranged on one side of the exhaust gas booster fan. When the exhaust gas booster fan extracts the exhaust gas, a large extraction force is generated, causing the exhaust gas to directly enter the interior of the exhaust gas booster fan under the action of the large extraction force, and there is no device to reduce the impact force of the exhaust gas at the exhaust gas booster fan, resulting in the impact force carried by the exhaust gas directly hitting the internal equipment of the exhaust gas booster fan, affecting the safe operation of the exhaust gas booster fan. To address the above problems, we propose a coal yard waste gas recovery equipment. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a waste gas recovery equipment, which solves the problem that the waste gas booster fan is mainly connected to various devices through a pipe body, but when the waste gas booster fan is extracting waste gas from the coal yard, the waste gas booster fan itself will be subjected to a large impact force, making the waste gas booster fan easy to be damaged, affecting the stable recovery of waste gas from the coal yard.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a coal yard waste gas recovery equipment, including a waste gas boosting centrifugal fan and a base, an air inlet pipe is arranged on one side of the waste gas boosting centrifugal fan, an exhaust pipe is arranged on the outer wall of the waste gas boosting centrifugal fan, a delay mechanism is arranged on one side of the air inlet pipe, and the delay mechanism includes:

[0007] A connection box, which is used for connecting the air inlet pipe and the air delivery pipe, and the connection box is connected to the side wall of the base;

[0008] A filter plate and a baffle plate are arranged inside the connection box, and the filter plate and the baffle plate are used to extend the flow path of the gas;

[0009] The scraper is slidably arranged inside the connection box and is used to clean the impurities adhered to the filter plate and the baffle.

[0010] Preferably, a first tube body is provided at the bottom end of one side of the connection box, and a second tube body is provided at the top end of one side of the connection box, the first tube body is connected to the air supply pipe, and the second tube body is connected to the air inlet pipe.

[0011] Preferably, an electric telescopic rod is provided on one side of the connection box, and the electric telescopic rod is used to control the movement of the scraper.

[0012] Preferably, a discharging mechanism is provided at the bottom of the connection box, and the discharging mechanism is used to centrally discharge impurities inside the connection box.

[0013] Preferably, the discharging mechanism includes an outlet opened on the bottom end surface of the connection box and a blocking plate for blocking the outlet, and the blocking plate is rotatably connected to the bottom end surface of the connection box.

[0014] Preferably, positioning plates are provided on both sides of the blocking plate, and one side of the positioning plates is connected to the outer wall of the connection box.

[0015] Preferably, a side surface of the positioning plate is rotatably connected with a threaded rod, and the threaded rod is used for fixing the baffle plate and the connection box.

[0016] The utility model discloses a coal yard waste gas recovery device, which has the following beneficial effects: the coal yard waste gas recovery device, by arranging a connecting box at the air inlet pipe of the waste gas boosting centrifugal fan, the inlet and outlet of the connecting box are arranged at unequal heights, and a plurality of groups of filter plates with different angles are arranged inside the connecting box, so that the path of the waste gas entering the waste gas boosting centrifugal fan is extended and controlled, thereby delaying the flow rate of the waste gas, avoiding the waste gas from directly colliding with the internal equipment of the waste gas boosting centrifugal fan under the extraction of a large external force, and effectively extending the service life of the waste gas boosting centrifugal fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the connection box and the first pipe body of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connection box, the first pipe body and the second pipe body of the utility model;

[0021] Figure 4 This is a cross-sectional view of the internal structure of the connection box of the utility model;

[0022] Figure 5 This is a schematic diagram of the expanded structure of the baffle of the utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the scraper and the electric telescopic rod of the utility model.

[0024] In the figure, 1. exhaust gas boosting centrifugal fan; 101. air inlet pipe; 102. exhaust pipe; 2. base; 3. delay mechanism; 301. connection box; 302. first tube body; 303. second tube body; 304. filter plate; 305. baffle; 306. scraper; 307. electric telescopic rod; 4. discharging mechanism; 401. outlet; 402. blocking plate; 403. positioning plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The embodiment of the present application provides a waste gas recovery device, which solves the problem that the waste gas booster fan is mainly connected to various devices through a pipe body, but the waste gas booster fan itself will be subjected to a large impact force during the process of extracting waste gas from the coal yard, making the waste gas booster fan easy to be damaged, affecting the stable recovery of waste gas from the coal yard, thereby achieving the extension and mitigation of the waste gas recovery path.

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] The utility model embodiment discloses a coal yard waste gas recovery device.

[0029] According to the attached Figure 1-6As shown, it includes an exhaust gas boosting centrifugal fan 1 and a base 2. An air inlet pipe 101 is arranged on one side of the exhaust gas boosting centrifugal fan 1, and an exhaust pipe 102 is arranged on the outer wall of the exhaust gas boosting centrifugal fan 1. The exhaust gas inside the fully enclosed coal yard is extracted by the exhaust gas boosting centrifugal fan 1, and the extracted exhaust gas can be recycled to the interior of the purification equipment so as to purify the environment inside the fully enclosed coal yard. The operation process can refer to patent [CN202122767137.8], which is specifically a waste gas recovery and utilization system for a fully enclosed coal yard.

[0030] A delay mechanism 3 is provided on one side of the air inlet pipe 101, that is, before the exhaust gas passes through the air inlet pipe 101 and enters the exhaust gas boosting centrifugal fan 1, it will first pass through the delay mechanism 3, so that the delay mechanism 3 delays the flow rate of the exhaust gas to prevent the exhaust gas from directly colliding with the internal equipment of the exhaust gas boosting centrifugal fan 1 under the extraction of a large external force. The delay mechanism 3 includes a connecting box 301, and the connecting box 301 is used for connecting the air inlet pipe 101 and the air delivery pipe. The connecting box 301 is connected to the side wall of the base 2. A first tube body 302 is provided at the bottom end of one side of the connecting box 301, and a second tube body 303 is provided at the top end of one side of the connecting box 301. The first tube body 3 02 is connected to the gas delivery pipe, the second tube body 303 is connected to the air inlet pipe 101, the filter plate 304 and the baffle 305 are both arranged inside the connecting box 301, the filter plate 304 and the baffle 305 are used to extend the flow path of the gas, the exhaust gas enters the interior of the connecting box 301 through the first tube body 302, and then contacts with the multiple groups of filter plates 304 arranged inside the connecting box 301, and then enters the interior of the air inlet pipe 101 through the multiple groups of filter plates 304 and the second tube body 303, and then enters the interior of the exhaust gas booster centrifugal fan 1 through the air inlet pipe 101, and finally enters the interior of the equipment connected to the exhaust pipe 102 through the exhaust pipe 102.

[0031] The scraper 306 is slidably arranged inside the connection box 301 , and is used to clean the impurities adhering to the filter plate 304 and the baffle 305 . An electric telescopic rod 307 is arranged on one side of the connection box 301 , and the electric telescopic rod 307 is used to control the movement of the scraper 306 .

[0032] A discharge mechanism 4 is provided at the bottom of the connection box 301, and the discharge mechanism 4 is used for concentratedly discharging impurities inside the connection box 301. The discharge mechanism 4 includes an outlet 401 opened at the bottom end face of the connection box 301 and a sealing plate 402 for blocking the outlet 401. The sealing plate 402 is rotatably connected to the bottom end face of the connection box 301. Positioning plates 403 are provided on both sides of the sealing plate 402. One side of the positioning plate 403 is connected to the outer wall of the connection box 301. The side of the positioning plate 403 is rotatably connected with a threaded rod, and the threaded rod is used for fixing the baffle 305 to the connection box 301.

[0033] The coal yard waste gas recovery equipment is configured with a connecting box 301 at the air inlet pipe 101 of the waste gas boosting centrifugal fan 1. The inlet and outlet of the connecting box 301 are arranged at unequal heights, and a plurality of groups of filter plates 304 with different angles are arranged inside the connecting box 301, so that the path of the waste gas entering the waste gas boosting centrifugal fan 1 is extended and controlled, thereby delaying the flow rate of the waste gas, preventing the waste gas from directly colliding with the internal equipment of the waste gas boosting centrifugal fan 1 when being extracted by a large external force, and effectively extending the service life of the waste gas boosting centrifugal fan 1.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A coal yard waste gas recovery device, comprising a waste gas boosting centrifugal fan (1) and a base (2), wherein an air inlet pipe (101) is arranged on one side of the waste gas boosting centrifugal fan (1), and an exhaust pipe (102) is arranged on the outer wall of the waste gas boosting centrifugal fan (1), characterized in that: A delay mechanism (3) is provided on one side of the air intake pipe (101), and the delay mechanism (3) comprises: A connection box (301) used for connecting the air inlet pipe (101) and the air delivery pipe, wherein the connection box (301) is connected to a side wall of the base (2); A filter plate (304) and a baffle (305) are arranged inside the connection box (301), and the filter plate (304) and the baffle (305) are used to extend the flow path of the gas; The scraper (306) is slidably disposed inside the connection box (301), and the scraper (306) is used to clean the impurities adhering to the filter plate (304) and the baffle plate (305).

2. A coal yard waste gas recovery device according to claim 1, characterized in that: A first tube body (302) is disposed at the bottom end of one side of the connection box (301), and a second tube body (303) is disposed at the top end of one side of the connection box (301); the first tube body (302) is connected to the air delivery pipe, and the second tube body (303) is connected to the air intake pipe (101).

3. The coal yard waste gas recovery equipment according to claim 1, characterized in that: An electric telescopic rod (307) is provided on one side of the connection box (301), and the electric telescopic rod (307) is used to control the movement of the scraper (306).

4. The coal yard waste gas recovery equipment according to claim 3 is characterized in that: A discharge mechanism (4) is provided at the bottom of the connection box (301), and the discharge mechanism (4) is used to centrally discharge impurities inside the connection box (301).

5. The coal yard waste gas recovery equipment according to claim 4, characterized in that: The discharge mechanism (4) comprises an outlet (401) provided on the bottom end surface of the connection box (301) and a blocking plate (402) for blocking the outlet (401); the blocking plate (402) is rotatably connected to the bottom end surface of the connection box (301).

6. The coal yard waste gas recovery equipment according to claim 5, characterized in that: Positioning plates (403) are provided on both sides of the blocking plate (402), and one side of the positioning plate (403) is connected to the outer wall of the connection box (301).

7. The coal yard waste gas recovery equipment according to claim 6, characterized in that: A threaded rod is rotatably connected to the side surface of the positioning plate (403), and the threaded rod is used to fix the baffle (305) and the connection box (301).

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