Exhaust filtering structure for power plant dry ash bulk system

Abstract

The utility model relates to an exhaust filtering structure for a power plant dry ash bulk system, which relates to the technical field of filtering structures, and comprises a gas transmission component, the gas transmission component comprises a shell, a gas pump, a gas inlet pipe and a gas exhaust pipe, the gas pump is arranged in the shell, the gas inlet pipe and the gas exhaust pipe are respectively arranged at the bottom and the top of the shell, and the gas pump is respectively connected with the gas inlet pipe and the gas exhaust pipe; and the filtering assembly is used for filtering ash powder in gas in the exhaust process, the filtering assembly is arranged in the gas inlet pipe, the filtering assembly comprises a mounting ring and a filtering cylinder, the mounting ring is mounted on the inner wall of the gas inlet pipe, and the filtering cylinder is mounted at the bottom of the inner wall of the mounting ring. According to the utility model, the first air inlet or the second air inlet can be automatically switched to use through the switching assembly, and ash on the filter screen can be hung down by utilizing the first limiting baffle or the second limiting baffle during switching, so that the blockage condition can be prevented, and the effect of cleaning the filter screen without stopping the machine can be realized; and the stable exhaust effect can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter structure technical field especially a kind of exhaust filter structure for power plant dry ash bulk system. BACKGROUND

[0002] Power plant dry ash intelligent loading system adopts PLC control automation module unit, including vehicle in place sensor, movable weightometer, dry ash bulk system etc., vehicle position sensor can measure vehicle position in real time, automatically adjust tank car position, make tank mouth and ash outlet align, realize automatic ash prevention, weightometer can measure empty car weight, record ash quantity, when reach set value, automatically stop ash, and prompt driver to drive off, wherein dry ash bulk machine composition includes bulkhead assembly, with complete set of negative pressure dust collection system, exhaust filter system, control box etc.

[0003] Exhaust filter system is the component part of dry ash bulk machine, can be used to unload area air circulation, ordinary exhaust filter system is easy to attach ash powder when using filter screen, thus need to clean frequently, so as to waste manpower and material resources, inconvenient to use. UTILITY MODEL CONTENT

[0004] In view of the technical problems in the prior art that the filter screen of exhaust filter system is easy to attach ash powder when in use, thus need to clean frequently, so as to waste manpower and material resources, inconvenient to use, the utility model provides a kind of exhaust filter structure for power plant dry ash bulk system.

[0005] The technical scheme adopted by the utility model is: a kind of exhaust filter structure for power plant dry ash bulk system, comprising:

[0006] Gas conveying assembly, the gas conveying assembly includes shell, gas pump, intake pipe and exhaust pipe, the gas pump is installed in shell, the intake pipe and exhaust pipe are respectively installed in shell bottom and top, the gas pump is connected with intake pipe and exhaust pipe respectively;

[0007] Filter assembly, for filtering ash powder in gas during exhaust process, the filter assembly is arranged in intake pipe, the filter assembly includes mounting ring and filter cartridge, the mounting ring is installed on the inner wall of intake pipe, the filter cartridge is installed on the inner wall bottom of mounting ring, first air inlet and second air inlet are respectively arranged on the two sides of filter cartridge, filter screen is installed on the first air inlet and second air inlet, and the first air inlet is located above the second air inlet;

[0008] Switching assembly, for switching first air inlet or second air inlet to use.

[0009] Further, the switching assembly comprises a hydraulic cylinder, a mounting rod, a first limiting baffle and a second limiting baffle, the hydraulic cylinder is installed at the bottom of the filter cartridge, the mounting rod is located at the top of the mounting ring and is installed at the output end of the hydraulic cylinder, the first limiting baffle and the second limiting baffle are respectively installed at two ends of the mounting rod, and the mounting ring is provided with a half-ring groove at two sides, and the first limiting baffle and the second limiting baffle are respectively clamped in the half-ring grooves and are respectively attached to two sides of the filter cartridge.

[0010] Further, an opening groove is formed in the upper half of the first limiting baffle, and the opening groove corresponds to the first air inlet.

[0011] Further, the first limiting baffle and the second limiting baffle have the same height, and the height of the first limiting baffle is greater than the distance between the first air inlet and the second air inlet.

[0012] Further, the housing is provided with an inspection opening at the front and rear sides, and a cover plate is installed outside the inspection opening.

[0013] The beneficial effects of the utility model are as follows:

[0014] The switching assembly can automatically switch the use of the first air inlet or the second air inlet, and the first limiting baffle or the second limiting baffle can hang the ash powder on the filter screen during switching, so that the blocking condition can be prevented, and the effect of cleaning the filter screen without stopping can be realized, and the stable exhaust effect can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the perspective view of the utility model;

[0016] Figure 2 is the internal structure view of the housing of the utility model;

[0017] Figure 3 is the cross-sectional view of the air inlet pipe of the utility model;

[0018] Figure 4 is the switching assembly (when the first air inlet is used) of the utility model;

[0019] Figure 5 is the switching assembly (when the second air inlet is used) of the utility model.

[0020] As shown in the figure: 1, gas delivery assembly; 101, housing; 102, air pump; 103, air inlet pipe; 104, exhaust pipe; 2, filter assembly; 201, mounting ring; 202, filter cartridge; 3, switching assembly; 301, hydraulic cylinder; 302, mounting rod; 303, first limiting baffle; 304, second limiting baffle; 4, first air inlet; 5, second air inlet; 6, filter screen; 7, half-ring groove; 8, open slot; 9, access hole; 10, cover plate. DETAILED DESCRIPTION

[0021] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] The following will be combined with the drawings Figures 1-5 Further illustrate the utility model.

[0024] In order to solve the problems in the background art, the present application proposes the following technical scheme: an exhaust filter structure for a power plant dry ash bulk system, comprising a gas delivery assembly 1, a filter assembly 2 and a switching assembly 3.

[0025] In specific implementation, as shown in Figure 1 and Figure 2 , the gas delivery assembly 1 comprises a housing 101, an air pump 102, an air inlet pipe 103 and an exhaust pipe 104, the air pump 102 is installed in the housing 101, the air inlet pipe 103 and the exhaust pipe 104 are respectively installed at the bottom and the top of the housing 101, the air pump 102 is connected with the air inlet pipe 103 and the exhaust pipe 104 respectively, the air inlet pipe 103 is connected with the exhaust position during use, and the air in the unloading area can be discharged through the air pump 102 and the air inlet pipe 103 during exhaust.

[0026] In specific implementation, as shown in Figures 3-5As shown, the filter assembly 2 is used to filter the ash in the gas during the exhaust process, the filter assembly 2 is arranged in the air inlet pipe 103, the filter assembly 2 includes a mounting ring 201 and a filter cylinder 202, the mounting ring 201 is mounted on the inner wall of the air inlet pipe 103, the filter cylinder 202 is mounted on the inner wall bottom of the mounting ring 201, the filter cylinder 202 is provided with a first air inlet 4 and a second air inlet 5 on both sides respectively, and a filter screen 6 is mounted on the first air inlet 4 and the second air inlet 5, the first air inlet 4 is located above the second air inlet 5, and the air in the discharge area can move upward through the first air inlet 4 and the second air inlet 5 under the suction of the air pump 102, so that the ash in the air can be filtered under the action of the filter screen 6.

[0027] In a specific implementation, as shown in Figure 1 and Figure 2 , the switching assembly 3 is used to switch the use of the first air inlet 4 or the second air inlet 5, the switching assembly 3 includes a hydraulic cylinder 301, a mounting rod 302, a first limiting baffle 303 and a second limiting baffle 304, the hydraulic cylinder 301 is mounted at the bottom of the filter cylinder 202, the mounting rod 302 is located at the top of the mounting ring 201 and is mounted at the output end of the hydraulic cylinder 301, the first limiting baffle 303 and the second limiting baffle 304 are respectively mounted at both ends of the mounting rod 302, and the mounting ring 201 is provided with a half-ring groove 7 on both sides, the first limiting baffle 303 and the second limiting baffle 304 are respectively clamped in the half-ring grooves 7 on both sides and attached to both sides of the filter cylinder 202, and the first limiting baffle 303 is provided with an open slot 8 on the upper half, which corresponds to the first air inlet 4, and the first limiting baffle 303 or the second limiting baffle 304 can be used to hang the ash on the filter screen 6 when switching, so that the situation of blockage can be prevented, when the first air inlet 4 is used, as shown in Figure 4 , the hydraulic cylinder 301 is in a fully retracted state, the open slot 8 on the first limiting baffle 303 corresponds to the first air inlet 4, and the second limiting baffle 304 blocks the second air inlet 5, so that the exhaust can only be completed through the first air inlet 4 at this time, when the second air inlet 5 is switched to be used, the hydraulic cylinder 301 is controlled to be started, the hydraulic cylinder 301 can push the mounting rod 302, the first limiting baffle 303 and the second limiting baffle 304 upward, and when it is fully extended, as shown in Figure 5 , the first limiting baffle 303 blocks the first air inlet 4 and can hang the ash on the filter screen 6 in the first air inlet 4 during the movement, so that automatic cleaning can be completed, and the second limiting baffle 304 no longer blocks the second air inlet 5, so that the exhaust can only be completed through the second air inlet 5 at this time, and then the use of the hydraulic cylinder 301 can be controlled intermittently.

[0028] Further, the first limiting baffle 303 and the second limiting baffle 304 are of the same height, the height of the first limiting baffle 303 is greater than the distance between the first air inlet 4 and the second air inlet 5, so that the first air inlet 4 and the second air inlet 5 can be guaranteed to be blocked at all times.

[0029] Further, the shell 101 is provided with an inspection opening 9 on the front and rear sides, and a cover plate 10 is installed outside the inspection opening 9, so that the air pump 102 can be conveniently overhauled through the inspection opening 9.

[0030] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein, and the contents not described in detail in the description belong to the prior art known to the person skilled in the art.

[0031] Although the embodiments of the utility model have been shown and described, the scope of the utility model is defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. An exhaust gas filtering structure for a dry bulk ash handling system of a power plant, characterized by, The utility model relates to a gas conveying device, which comprises a housing (101), a gas pump (102), an air inlet pipe (103) and an air outlet pipe (104), the gas pump (102) is installed in the housing (101), the air inlet pipe (103) and the air outlet pipe (104) are installed at the bottom and the top of the housing (101) respectively, and the gas pump (102) is connected with the air inlet pipe (103) and the air outlet pipe (104) respectively. A filter assembly (2) is arranged in the air inlet pipe (103) to filter ash powder in the gas during the air exhaust process, the filter assembly (2) comprises a mounting ring (201) and a filter cylinder (202), the mounting ring (201) is mounted on the inner wall of the air inlet pipe (103), the filter cylinder (202) is mounted on the inner wall bottom of the mounting ring (201), first and second air inlets (4, 5) are arranged on the two sides of the filter cylinder (202) respectively, filter screens (6) are mounted on the first and second air inlets (4, 5), and the first air inlet (4) is located above the second air inlet (5). A switching assembly (3) is arranged to switch the use of the first air inlet (4) or the second air inlet (5). The switching assembly (3) comprises a hydraulic cylinder (301), a mounting rod (302), first and second limiting baffle plates (303, 304), the hydraulic cylinder (301) is mounted at the bottom of the filter cylinder (202), the mounting rod (302) is arranged at the top of the mounting ring (201) and is mounted on the output end of the hydraulic cylinder (301), the first and second limiting baffle plates (303, 304) are arranged at the two ends of the mounting rod (302) respectively, semicircular grooves (7) are arranged on the two sides of the mounting ring (201), the first and second limiting baffle plates (303, 304) are clamped in the semicircular grooves (7) on the two sides respectively, and the first and second limiting baffle plates (303, 304) are attached to the two sides of the filter cylinder (202) respectively.

2. The exhaust filter structure for a power plant dry ash bulk handling system of claim 1, wherein, An opening groove (8) is arranged in the upper half of the first limiting baffle plate (303), and the opening groove (8) corresponds to the first air inlet (4).

3. The exhaust filter structure for a power plant dry ash bulk handling system of claim 2, wherein, The first limiting baffle plate (303) and the second limiting baffle plate (304) have the same height, and the height of the first limiting baffle plate (303) is greater than the distance between the first air inlet (4) and the second air inlet (5).

4. The exhaust filter structure for a power plant dry ash bulk handling system of claim 3, wherein, Maintenance openings (9) are arranged on the front and back sides of the housing (101), and cover plates (10) are mounted on the outer sides of the maintenance openings (9).

5. The exhaust filter structure for a power plant dry ash bulk handling system of claim 1, wherein, ​

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