A kind of leakage air control adjusting device for dry slag machine

Abstract

The utility model discloses a kind of air leakage management adjusting devices for dry slag machine, specifically related to boiler combustion technical field, including dry slag machine shell, the dry slag machine shell inside is provided with feeder, the dry slag machine shell upper end is provided with adjusting assembly, the dry slag machine shell upper end is also fixed with air blower, the adjusting assembly includes U-shaped pipe, sealing rod one is slidably installed in U-shaped pipe right side vertical portion, U-shaped pipe inner cavity left side vertical portion is also fixed with bracket one, spring one is fixed on the bracket one upper end, spring one upper end is also fixed with sealing rod two, through-hole is arranged in the sealing rod two upper end, exhaust hole is arranged on the U-shaped pipe right side vertical portion outer surface, the sealing rod two upper end is also provided with air inlet component. The utility model said a kind of air leakage management adjusting devices for dry slag machine, using the design of adjusting assembly, air pressure in the dry slag machine shell does not need to be kept by operating personnel alone control, facilitate the operation of device.

Description

Technical Field

[0001] This utility model relates to the field of boiler combustion technology, and in particular to a device for regulating and controlling air leakage in a dry slag machine. Background Technology

[0002] Given the unknown and uncontrollable status of cooling air volume and ash volume of dry ash discharge machine in thermal power units, it is necessary to conduct correlation analysis on boiler operating conditions, ash discharge conditions, and cooling air volume of ash discharge machine, study online monitoring technology for air leakage rate of dry ash discharge machine and ash discharge image recognition technology, develop a real-time online air leakage and ash discharge monitoring system, monitor the operating status of dry ash discharge machine in real time, and reduce air leakage at the bottom of dry ash discharge machine.

[0003] Chinese patent document CN221403086U discloses a device for regulating and controlling air leakage in a dry slag machine. The device includes a slag discharge machine body, a boiler fixedly connected to the upper end of the body, a first slag discharge pipe fixedly connected to the lower end of the boiler, and the first slag discharge pipe fixedly connected to the slag discharge machine body. A conveyor is installed inside the slag discharge machine body, and the conveyor is fixedly connected to the slag discharge machine body via rollers. A cooling fan is fixedly connected to one end of the slag discharge machine body, and an exhaust pipe is fixedly connected to the body. A first-stage cyclone separator is fixedly connected to the first connecting pipe. The beneficial effects of this invention are: multiple sets of feeding measuring devices and temperature sensors installed on the first slag discharge pipe and the exhaust pipe are used to obtain the slag discharge amount, the furnace bottom air intake, and the temperature of the tuyeres in real time. The air volume of the cooling fan can be adjusted based on the data. By monitoring the slag discharge amount, the furnace bottom air intake, and the temperature of the tuyeres in real time, the operating status of the dry slag discharge machine can be monitored in real time, reducing air leakage at the furnace bottom of the dry slag discharge machine.

[0004] However, in actual use, the device cannot automatically adjust the pressure inside the dry slag machine, and operators are still required to adjust it, which is inconvenient for the operation of the device. Utility Model Content

[0005] The main purpose of this utility model is to provide a device for regulating air leakage in a dry slag machine, which can effectively solve the problem of inconvenient device operation.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A device for regulating and controlling air leakage in a dry slag machine includes a dry slag machine housing, a conveyor installed inside the dry slag machine housing, an adjustment component installed at the upper end of the dry slag machine housing, and a blower fixed at the upper end of the dry slag machine housing.

[0008] The adjustment assembly includes a U-shaped tube, both ends of which are connected to the interior of the dry slag machine housing. A sealing rod is slidably installed inside the vertical part on the right side of the U-shaped tube. A bracket is also fixed to the vertical part on the left side of the inner cavity of the U-shaped tube. A spring is fixed to the upper end of the bracket. A sealing rod is also fixed to the upper end of the spring. A through hole is opened at the upper end of the sealing rod. An exhaust hole is opened on the outer surface of the vertical part on the right side of the U-shaped tube. An air intake assembly is also provided at the upper end of the sealing rod.

[0009] Preferably, a sealing gasket is provided between the U-shaped tube and the dry slag machine housing, and the sealing gasket is made of flexible graphite material.

[0010] Preferably, the air intake assembly includes multiple extension rods, which are fixed to the end of the sealing rod two away from the spring one. A mounting plate is also fixed to the end of each extension rod away from the sealing rod two. Multiple ball bearings are disposed between the mounting plate and the sealing rod one, and these ball bearings roll within the U-shaped tube. A bracket two is fixed to the inner wall of the U-shaped tube, and a control switch is fixed to the upper end of the bracket two. A spring two is fixed between the button of the control switch and the sealing rod two.

[0011] Preferably, the control switch is connected to the blower via an electrical circuit.

[0012] Preferably, when the second spring is in its natural state, the control switch is in the off state.

[0013] Preferably, the exhaust port is located at the upper part of the blower output end.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This air leakage regulating device adopts the design of regulating components. Through the cooperation between sealing rod one and sealing rod two, when the pressure inside the dry slag machine shell is too high, it can automatically release the pressure and quickly restore the internal pressure to the normal range, effectively preventing the entry of outside air. When negative pressure is generated inside the dry slag machine shell, it can automatically inject air into the dry slag machine shell without the need for separate control by the operator to maintain the air pressure inside the dry slag machine shell, which facilitates the operation of the device.

[0016] 2. This air leakage regulating device uses a flexible graphite sealing gasket, which can effectively reduce air leakage during the use of the dry slag machine, making the device more stable during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a plan view of the adjustment component of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the adjustment component for excessive pressure inside the shell of the dry slag machine according to this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the adjusting component when there is negative pressure inside the shell of the dry slag machine of this utility model.

[0023] In the diagram: 1. Dry slag machine housing; 2. Conveyor; 3. Adjustment assembly; 4. Blower; 31. U-shaped pipe; 32. Sealing rod one; 33. Bracket one; 34. Spring one; 35. Sealing rod two; 36. Through hole; 37. Exhaust hole; 38. Air intake assembly; 381. Extension rod; 382. Mounting plate; 383. Ball bearing; 384. Bracket two; 385. Control switch; 386. Spring two. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 As shown, a device for regulating air leakage in a dry slag machine includes a dry slag machine housing 1. A conveyor 2 is installed inside the dry slag machine housing 1. Both the dry slag machine housing 1 and the conveyor 2 are existing technologies used to transport dry slag materials. An adjustment component 3 is installed at the upper end of the dry slag machine housing 1. A blower 4 is also fixed at the upper end of the dry slag machine housing 1. The blower 4 is existing technology used to inject air into the dry slag machine housing 1 to prevent negative pressure from being generated inside the dry slag machine housing 1, which would affect the normal operation of the device.

[0026] like Figure 2 and Figure 3As shown, the adjusting component 3 includes a U-shaped tube 31, both ends of which are connected to the interior of the dry slag machine housing 1. A sealing gasket is provided between the U-shaped tube 31 and the dry slag machine housing 1. The sealing gasket is made of flexible graphite material. Flexible graphite has good thermal conductivity, corrosion resistance and low coefficient of friction. It is not brittle at low temperatures and does not soften at high temperatures. In non-oxidizing media, the maximum operating temperature can reach 650℃, and in oxidizing media, the upper limit temperature can reach 450℃. It is often used for static sealing of flange connections of pipes, valves and other high-temperature and high-pressure applications. Since the dry slag machine operates at high temperatures, the sealing effect of conventional sealing gaskets is relatively poor. Using a sealing gasket made of flexible graphite material can effectively reduce air leakage during the use of the dry slag machine. A sealing rod 32 is slidably installed inside the vertical part on the right side of the U-shaped tube 31. A bracket 33 is also fixed to the vertical part on the left side of the inner cavity of the U-shaped tube 31. A spring 34 is fixed to the upper end of the bracket 33.

[0027] Among them, bracket 33 is used for the installation of spring 34. A sealing rod 35 is also fixed at the upper end of spring 34. Due to the design of the fixed connection between spring 34 and sealing rod 35, spring 34 can retract or release when sealing rod 35 moves up and down. A through hole 36 is opened at the upper end of sealing rod 35. An exhaust hole 37 is opened on the outer surface of the vertical part on the right side of U-shaped tube 31. An air intake assembly 38 is also provided at the upper end of sealing rod 35.

[0028] like Figure 3 and Figure 4 As shown, the intake assembly 38 includes multiple extension rods 381. These extension rods 381 are fixed to the end of the second sealing rod 35 away from the first spring 34. A mounting plate 382 is also fixed to the end of each extension rod 381 away from the second sealing rod 35. Due to the design of the multiple extension rods 381, a cavity is left between the mounting plate 382 and the second sealing rod 35. Multiple ball bearings 383 are arranged between the mounting plate 382 and the first sealing rod 32. These ball bearings 383 roll within the U-shaped tube 31. Due to the U-shaped design of the U-shaped tube 31, when the first sealing rod 32 moves downward, the second sealing rod 35 moves upward; when the first sealing rod 32 moves upward, the second sealing rod 35 moves downward. A bracket 384 is fixed to the inner wall of the U-shaped tube 31. Figure 3 As shown, when spring 34 is in its natural state, bracket 384 is located at the center of mounting plate 382 and through hole 36. Control switch 385 is fixed at the upper end of bracket 384. Control switch 385 adopts a normally open switch design. Normally open switches are existing technology. When it is not subjected to external force, the contacts are always in the open state. Control switch 385 is connected to blower 4 through circuit. When control switch 385 is in the closed state, blower 4 works, thereby injecting air into U-shaped tube 31.

[0029] When the control switch 385 is in the open circuit state, the blower 4 stops working. A spring 386 is fixed between the button of the control switch 385 and the sealing rod 35. Since the upper end of the sealing rod 35 has a through hole 36, a support rod needs to be installed inside the through hole 36 for the installation of the spring 386. Since this installation method is existing technology, it will not be described in detail in this embodiment. When the sealing rod 35 moves upward, it will compress the spring 386. The spring 386 will give the button of the control switch 385 a spring force, so that the control switch 385 is in the closed state. Then the blower 4 starts working and injects air into the U-shaped tube 31 through the pipe. Due to the design of the through hole 36, the air injected by the blower 4 will enter the U-shaped tube 31 through the through hole 36 and then enter the blower 4, thereby achieving the function of regulating the pressure inside the dry slag machine housing 1.

[0030] like Figure 5 and Figure 6 As shown, when spring 386 is in its natural state, control switch 385 is in the open state, so that blower 4 will not work when the pressure inside dry slag machine housing 1 is normal, thus reducing the energy consumption of the device. At the same time, due to the design of the cooperation between control switch 385 and spring 386, control switch 385 can be closed when it is pressured by spring 386, and can still be in the open circuit state when it is pulled by spring 386, so that the device can work normally during use.

[0031] like Figure 3 As shown, the exhaust port 37 is located above the output end of the blower 4, so that when the sealing rod 35 moves downward, the U-shaped tube 31 can communicate with the outside through the exhaust port 37, and the sealing rod 35 seals the output end of the blower 4 to prevent the air entering the U-shaped tube 31 from being discharged from the blower 4, thus prolonging the pressure regulation time of the device. When the sealing rod 35 moves upward, the U-shaped tube 31 can communicate with the outside through the output end of the blower 4, so that the blower 4 can fill the dry slag machine housing 1 with air, thereby regulating the pressure inside the dry slag machine housing 1. The sealing rod 35 seals the exhaust port 37 to prevent the air filled by the blower 4 from being discharged from the exhaust port 37, thereby reducing the working efficiency of the device.

[0032] The specific implementation of this embodiment is as follows: Due to the design of spring 34, when the pressure inside the dry slag machine housing 1 is too high, it will push the sealing rod 32 to move upward. Due to the design of the sealing rod 32 and the mounting plate 382 being connected by multiple balls 383, the sealing rod 35 moves downward (while spring 34 retracts). When the top surface of the sealing rod 35 is below the highest point of the exhaust hole 37, the gas and pressure inside the dry slag machine housing 1 are discharged through the through hole 36 and the exhaust hole 3, thereby releasing the pressure inside the dry slag machine housing 1 and preventing the pressure inside the dry slag machine housing 1 from being too high, which would affect the normal use of the device.

[0033] When negative pressure is generated inside the dry slag machine housing 1, the sealing rod 32 moves downward, causing the sealing rod 35 to move upward. Since the spring 386 is fixedly connected to the sealing rod 35, the control switch 385 is subjected to the elastic force of the spring 386, thus keeping the control switch 385 in a closed state. Then the blower 4 is turned on, and air enters the U-shaped pipe 31 and finally enters the dry slag machine housing 1, thereby preventing negative pressure from being generated inside the dry slag machine housing 1 and making the device more stable during use.

[0034] It should be noted that the specific installation methods, circuit connection methods, and control methods of the dry slag machine housing 1, the conveyor 2, and the blower 4 in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for regulating and controlling air leakage in a dry slag machine, comprising a dry slag machine housing (1), characterized in that: The dry slag machine housing (1) is equipped with a conveyor (2), the upper end of the dry slag machine housing (1) is equipped with an adjustment component (3), and the upper end of the dry slag machine housing (1) is also fixed with a blower (4). The adjustment component (3) includes a U-shaped tube (31), both ends of which are connected to the interior of the dry slag machine housing (1). A sealing rod (32) is slidably installed in the vertical part on the right side of the U-shaped tube (31). A bracket (33) is also fixed in the vertical part on the left side of the inner cavity of the U-shaped tube (31). A spring (34) is fixed at the upper end of the bracket (33). A sealing rod (35) is also fixed at the upper end of the spring (34). A through hole (36) is opened at the upper end of the sealing rod (35). An exhaust hole (37) is opened on the outer surface of the vertical part on the right side of the U-shaped tube (31). An air intake component (38) is also provided at the upper end of the sealing rod (35).

2. The air leakage control and adjustment device for a dry slag machine according to claim 1, characterized in that: A sealing gasket is provided between the U-shaped tube (31) and the dry slag machine housing (1), and the sealing gasket is made of flexible graphite material.

3. The air leakage control and adjustment device for a dry slag machine according to claim 1, characterized in that: The air intake assembly (38) includes multiple extension rods (381), which are fixed to the end of the sealing rod (35) away from the spring (34). The end of the multiple extension rods (381) away from the sealing rod (35) is also fixed with a mounting plate (382). Multiple balls (383) are provided between the mounting plate (382) and the sealing rod (32). The multiple balls (383) roll inside the U-shaped tube (31). A bracket (384) is fixed to the inner wall of the U-shaped tube (31). A control switch (385) is fixed to the upper end of the bracket (384). A spring (386) is fixed between the button of the control switch (385) and the sealing rod (35).

4. The air leakage control and adjustment device for a dry slag machine according to claim 3, characterized in that: The control switch (385) is connected to the blower (4) via a circuit.

5. The air leakage control and adjustment device for a dry slag machine according to claim 4, characterized in that: When the second spring (386) is in its natural state, the control switch (385) is in the off state.

6. The air leakage control and adjustment device for a dry slag machine according to claim 1, characterized in that: The exhaust port (37) is located at the upper part of the output end of the blower (4).

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