Equipment for preventing hopper at lower part of flue from being blocked

Abstract

The utility model relates to the technical field of powder discharge, in particular to equipment for preventing a hopper at the lower part of a flue from being blocked, which comprises a gate valve, a cinder valve and an air cannon which are arranged at the bottom of the hopper, an inspection box is arranged between the gate valve and the cinder valve, and the inspection box is provided with an inspection opening and a door plate I for sealing the inspection opening. The first door plate is detachably connected with the inspection box. The hopper has the effect of effectively solving the problem of material blockage in the hopper.

Description

Technical Field

[0001] The utility model relates to the field of powder material discharge technology, in particular to a device for preventing a hopper at the bottom of a flue from being blocked. Background Art

[0002] In the waste incineration power generation system, the powder produced after incineration will enter the hopper and be discharged outside. Generally, gate valves and ash discharge valves are installed on the neck of the hopper to control the fall of the powder.

[0003] However, during the production process, the powder may be compacted above the ash discharge valve, which may lead to the blockage of the hopper. In order to reduce the blockage, the prior art adopts the method of installing an air cannon on the outer wall of the hopper to dredge the powder by impacting it with high-pressure airflow. However, if the compaction is serious, this method cannot effectively solve the blockage problem. Utility Model Content

[0004] In order to effectively solve the problem of material blockage in the hopper, the utility model provides a device for preventing the hopper at the lower part of the flue from being blocked.

[0005] The utility model provides a device for preventing the hopper at the bottom of the flue from being blocked, which adopts the following technical solution:

[0006] A device for preventing a hopper at the bottom of a flue from being blocked comprises a gate valve, an ash discharge valve and an air cannon installed at the bottom of the hopper, an inspection box is installed between the gate valve and the ash discharge valve, an inspection port and a door panel for closing the inspection port are arranged on the inspection box, and the door panel is detachably connected to the inspection box.

[0007] By adopting the above technical solution, the powder produced after incineration enters the hopper and then passes through the gate valve, inspection box and ash discharge valve before entering the next process. The air cannon has a cleaning effect. If blockage still occurs, the staff can open the inspection box in time and take out the blockage inside, thereby solving the blockage problem and ensuring the normal production process.

[0008] Optionally, the inspection box is also provided with an auxiliary dust cleaning mechanism, which includes an installation box 1 fixedly connected to the side of the inspection box away from the inspection port, the inspection box is provided with a clearance port for communicating with the installation box 1, a cylinder is installed at one end of the installation box 1 away from the clearance port, and a bridge breaking head driven by the cylinder piston rod is slidably arranged inside the installation box 1.

[0009] By adopting the above technical scheme, before the staff removes the compacted dust, the staff can first control the extension of the cylinder to break the compacted dust through the breaking bridge head, so as to facilitate the staff to remove it. If the crushing effect is good, there is no need to remove the crushed dust and it can be directly discharged from the ash unloading valve.

[0010] Optionally, an installation box 2 is slidably arranged inside the installation box 1, a driving motor is arranged inside the installation box 2, the output shaft of the driving motor is connected to the broken bridge head, and the installation box 2 is connected to the cylinder piston rod.

[0011] By adopting the above technical solution, the driving motor drives the bridge breaking head to rotate, thereby improving the crushing effect.

[0012] Optionally, the bridge breaking head includes a bottom plate and a plug plate fixed to a side of the bottom plate close to the clearance opening and in a cross shape, and a wedge-shaped surface is provided at one end of the plug plate away from the bottom plate.

[0013] By adopting the above technical solution, the design of the wedge-shaped surface makes it easier for the bridge breaking head to be inserted into the compacted dust.

[0014] Optionally, a sealing ring is embedded on the inner wall of the first installation box, and the sealing ring is elastically abutted against the second installation box.

[0015] By adopting the above technical solution, the sealing ring seals the gap between the installation box 1 and the installation box 2, thereby reducing the dust from entering the interior of the installation box 1.

[0016] Optionally, two door panels 2 cooperating with the closed clearance opening are hinged on the inner wall of the inspection box, and the hinge points of the door panels 2 are located above the clearance opening.

[0017] By adopting the above technical solution, the two door panels 2 cooperate with each other to close the clearance opening without using the broken bridge head, thereby reducing the entry of dust into the installation box 1. When the broken bridge head is needed, the broken bridge head pushes the two door panels 2 apart from each other, thereby opening the clearance opening.

[0018] Optionally, a guide plate is fixedly connected to one side of the door panel 2 close to the broken bridge head, and the two guide plates are vertically arranged to form an eight-shaped angle that matches the wedge-shaped surface of the plug plate.

[0019] By adopting the above technical solution, under the guidance of the two guide plates, the broken bridge head can be easily moved out of the installation box.

[0020] Optionally, door panel 1 is mounted on the inspection box by bolts.

[0021] By adopting the above technical solution, bolts are used to facilitate installation or removal of the door panel.

[0022] In summary, the utility model includes at least one of the following beneficial technical effects:

[0023] The powder produced after incineration enters the hopper and passes through the gate valve, inspection box and ash discharge valve before entering the next process. The air cannon has a ash removal effect. If blockage still occurs, the staff can open the inspection box in time and take out the blockage inside, thereby solving the blockage problem and ensuring normal production procedures;

[0024] Before the staff removes the caked dust, the staff can first control the cylinder to extend to break the caked dust through the breaking bridgehead, so as to facilitate the staff to remove it. If the breaking effect is good, it is not necessary to remove the broken dust and it can be directly discharged by the ash discharge valve;

[0025] The driving motor drives the breaking bridgehead to rotate to improve the breaking effect. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the device for preventing the lower hopper of the flue from being blocked in Embodiment 1 of the present invention.

[0027] Figure 2 It is a cross-section of the device for preventing the lower hopper of the flue from being blocked in Embodiment 2 of the present invention Figure 1 .

[0028] Figure 3 It is a cross-section of the device for preventing the lower hopper of the flue from being blocked in Embodiment 2 of the present invention Figure 2 .

[0029] Description of the reference numerals: 1, hopper; 2, gate valve; 3, ash discharge valve; 4, air cannon; 5, inspection box; 50, inspection opening; 51, door panel 1; 510, bolt; 52, relief opening; 6, auxiliary ash cleaning mechanism; 60, mounting box 1; 61, cylinder; 62, breaking bridgehead; 620, bottom plate; 621, insertion plate; 63, mounting box 2; 64, driving motor; 65, sealing ring; 66, door panel 2; 660, guiding plate. Detailed Description of the Invention

[0030] The following is a further detailed description of the present invention in conjunction with the attached Figure 1 - attached Figure 3 drawings.

[0031] An embodiment of the present invention discloses a device for preventing the lower hopper of a flue from being blocked. Embodiment 1

[0032] Referring to Figure 1 , a gate valve 2 for controlling the discharge, an ash discharge valve 3 for conveying powder, and an air cannon 4 for forming an air flow to impact the powder are installed at the bottom of the hopper 1. A device for preventing the lower hopper of a flue from being blocked includes an inspection box 5 installed between the gate valve 2 and the ash discharge valve 3. An inspection opening 50 for the staff to clean the caked powder is provided on the inspection box 5, and a door panel 1 51 for closing the inspection opening 50 is installed through bolts 510, and a handle is installed on the door panel 1 51.

[0033] The implementation principle of Example 1 is as follows: the powder formed after incineration enters the hopper 1 and is sequentially conveyed to the next process through the gate valve 2, the inspection box 5 and the ash discharge valve 3, and the air cannon 4 plays a role in daily ash removal. When a blockage occurs, the staff can remove the door panel 51, open the inspection port 50, and take out the compacted dust in the inspection box 5 to eliminate the blockage problem. Example 2

[0034] Reference Figure 2 In order to assist the staff in cleaning the powder and improve the powder cleaning efficiency, the difference between this embodiment and embodiment 1 is that an auxiliary cleaning mechanism 6 is also provided on the inspection box 5, and the auxiliary cleaning mechanism 6 includes an installation box 1 60 fixedly connected to the side of the inspection box 5 away from the inspection port 50, and a clearance port 52 is provided on the inspection box 5 at a position corresponding to the installation box 1 60, so that the installation box 1 60 is connected to the inside of the inspection box 5.

[0035] Reference Figure 2 A cylinder 61 is installed on the outer wall of the installation box 60 away from the clearance port 52, and the piston rod of the cylinder 61 is slidably penetrated in the installation box 60; a bridge breaking head 62 for breaking the dust compaction is arranged in the installation box 60, and the bridge breaking head 62 includes a bottom plate 620 and two plug plates 621 arranged in a cross shape, the plug plates 621 are fixedly connected to one side of the bottom plate 620 close to the clearance port 52, and the end of the plug plates 621 away from the bottom plate 620 is arranged into a wedge-shaped surface to facilitate insertion into the compacted dust.

[0036] Reference Figure 2 A second installation box 63 is also slidably arranged in the installation box 1 60, and a driving motor 64 is installed in the installation box 2 63. The output shaft of the driving motor 64 is connected to the bottom plate 620, so that the bridge breaking head 62 is driven to rotate by the driving motor 64, and the piston rod of the cylinder 61 is connected to the second installation box 63, so as to drive the second installation box 63 to reciprocate in the installation box 1 60; in order to reduce the dust from entering the gap between the installation box 1 60 and the installation box 2 63, thereby affecting the sliding of the installation box 2 63, a sealing ring 65 is embedded on the inner wall of the installation box 1 60, and the sealing ring 65 is elastically abutted against the installation box 2 63.

[0037] Reference Figure 2 and Figure 3In order to reduce the amount of powder entering the installation box 1 60 through the clearance opening 52 during normal falling, two semicircular door panels 66 are hinged on the inner wall of the inspection box 5 at the position corresponding to the clearance opening 52, and the hinge point is located above the clearance opening 52. The two door panels 66 naturally droop under the action of gravity to form a circular door panel to close the clearance opening 52. When the broken bridge head 62 moves into the inspection box 5, the wedge-shaped surface of the plug plate 621 contacts the door panel 66 and drives the two door panels 66 away from each other, thereby opening the clearance opening 52; in order to facilitate the two door panels 66 to move away from each other, a guide plate 660 is fixedly connected to one side of each door panel 66 close to the broken bridge head 62, and the two guide plates 660 are vertically arranged and form an eight-shaped angle that matches the wedge-shaped surface of the plug plate 621, so as to achieve a guiding effect.

[0038] The implementation principle of Example 2 is as follows: before the staff opens the inspection box 5 to remove the dust, the staff can first control the extension of the cylinder 61 to allow the bridge breaking head 62 to enter the inspection box 5, and the driving motor 64 drives the bridge breaking head 62 to rotate to break the dust into pieces, so as to facilitate the staff to remove it later; at the same time, if the blockage problem can be effectively solved by using only the bridge breaking head 62, it is not necessary to open the inspection box 5 to remove the powder, and only the bridge breaking head 62 can be used.

[0039] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A device for preventing a hopper at the bottom of a flue from being blocked, comprising a gate valve (2), an ash discharge valve (3) and an air cannon (4) installed at the bottom of the hopper (1), characterized in that: An inspection box (5) is installed between the gate valve (2) and the ash discharge valve (3). The inspection box (5) is provided with an inspection port (50) and a door panel (51) for closing the inspection port (50). The door panel (51) is detachably connected to the inspection box (5).

2. The device for preventing the lower hopper of the flue from being blocked according to claim 1, characterized in that: The inspection box (5) is also provided with an auxiliary dust cleaning mechanism (6), which comprises an installation box (60) fixedly connected to the side of the inspection box (5) away from the inspection port (50), a clearance port (52) for communicating with the installation box (60) is provided on the inspection box (5), a cylinder (61) is installed at one end of the installation box (60) away from the clearance port (52), and a bridge breaking head (62) driven by a piston rod of the cylinder (61) is slidably provided in the installation box (60).

3. The device for preventing the lower hopper of the flue from being blocked according to claim 2, characterized in that: The first installation box (60) is also slidably provided with a second installation box (63), and the second installation box (63) is provided with a driving motor (64). The output shaft of the driving motor (64) is connected to the bridge breaking head (62), and the second installation box (63) is connected to the piston rod of the cylinder (61).

4. The device for preventing the lower hopper of the flue from being blocked according to claim 2 or 3, characterized in that: The bridge breaking head (62) comprises a bottom plate (620) and a plug plate (621) fixedly connected to the bottom plate (620) at one side close to the clearance opening (52) and in a cross shape. A wedge-shaped surface is provided at one end of the plug plate (621) away from the bottom plate (620).

5. The device for preventing the lower hopper of the flue from being blocked according to claim 3, characterized in that: A sealing ring (65) is embedded on the inner wall of the first installation box (60), and the sealing ring (65) elastically abuts against the second installation box (63).

6. The device for preventing the lower hopper of the flue from being blocked according to claim 4, characterized in that: Two door panels (66) are hingedly connected to the inner wall of the inspection box (5) to cooperate with the closed clearance opening (52), and the hinge points of the door panels (66) are located above the clearance opening (52).

7. The device for preventing the lower hopper of the flue from being blocked according to claim 6, characterized in that: A guide plate (660) is fixedly connected to one side of the second door plate (66) close to the broken bridge head (62). The two guide plates (660) are arranged vertically and form an eight-shaped angle matched with the wedge-shaped surface of the plug plate (621).

8. The device for preventing the lower hopper of the flue from being blocked according to claim 1, characterized in that: The door panel 1 (51) is mounted on the inspection box (5) by means of bolts (510).

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