Main machine of hydraulic ash removal system

Abstract

The utility model relates to the technical field of hydraulic ash removal, in particular to a hydraulic ash removal system main machine which comprises a main machine support, a main shaft, a water inlet pipe, a metal hose, a metal hose guide assembly, a metal hose pressing wheel, a transmission gear assembly and a driving wheel. The shell is fixedly installed in the main machine support, the main shaft is rotationally connected to the interior of the shell, the water inlet pipe and the metal hose are both arranged in the main machine support, and the metal hose guide assembly is arranged at one end of the metal hose; water is conveyed into the metal hose through the water inlet pipe, enters the flue of the boiler through the metal hose and then enters the flue through the check valve and the nozzle at the end of the metal hose to clean the flue, operation of the boiler is not affected during online cleaning of the equipment, water is used as an ash cleaning medium, the operation cost is lower than that of steam ash blowing, arrangement is flexible, and operation is convenient. And one boiler can realize full coverage of two channels and three channels by only needing one main engine, so that the investment cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic dust cleaning, in particular to a main unit of a hydraulic dust cleaning system. Background Art

[0002] Due to the uncertainty of waste composition, the operating conditions of the boiler often change, causing slagging and coking in the boiler furnace, which affects the heat exchange in the furnace area, causing high flue gas temperatures at the inlet of the horizontal flue evaporator, leading to high-temperature corrosion of the heating surface, requiring large-scale replacement of the heating surface, and causing huge economic losses. Therefore, furnace cleaning is necessary.

[0003] Currently, most waste incineration boilers use shock wave or sidewall steam cleaning in their secondary and tertiary flues. However, after a period of operation, these systems are found to be insufficient to meet boiler operational requirements. Heavy ash accumulation persists in these flues, necessitating shutdowns every three to four months for cleaning, impacting the safety and economic viability of the power plant. This is due to the high viscosity of the ash produced by waste incineration, making conventional cleaning methods inadequate for cleaning the secondary and tertiary flues of waste incineration boilers.

[0004] In response to this situation, we proposed a hydraulic cleaning system host to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a hydraulic dust cleaning system host to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The main unit of the hydraulic dust cleaning system includes: a main unit bracket, a main shaft, a water inlet pipe, a metal hose, a metal hose guide assembly, a metal hose pinch wheel, a transmission gear assembly, and a driving wheel; a shell is fixedly installed inside the main unit bracket, the main shaft is rotatably connected to the inside of the shell, the water inlet pipe and the metal hose are both arranged inside the main unit bracket, the metal hose guide assembly is arranged at one end of the metal hose, the metal hose pinch wheel is arranged at one end of the metal hose guide assembly, and the transmission gear assembly and the driving wheel are both arranged inside the shell.

[0008] Preferably, a hose lifting motor is fixedly installed on the top of the main frame, and a synchronous belt 1 is provided on the top of the main shaft. The hose lifting motor can drive the main shaft to rotate through the synchronous belt 1.

[0009] Preferably, a mainframe hanger plate is fixedly installed on the top of the mainframe bracket, and there are two mainframe hangers, both of which are provided with four mounting holes. The device is hung under the track beam through the mainframe hanger plate, and the mainframe is controlled by the upper and lower travel motors to move to various cleaning points.

[0010] Preferably, a hose cage is provided inside the shell, and the metal hose is coiled inside the hose cage. The hose cage is provided to limit the metal hose, and the metal hose is coiled in order from the bottom to the top in the hose cage.

[0011] Preferably, a hemispherical head is provided at the bottom of the metal hose, a check valve is provided at the bottom of the hemispherical head, a nozzle is provided at the bottom of the check valve, and a purge sealing compressed air pipeline is provided on the main frame bracket. The purge sealing compressed air pipeline can introduce sealed compressed air into the middle of the hemispherical head to form a layer of high-pressure air film to seal the gap between the metal hose and the hemispherical head. This layer of high-pressure air film can not only separate the flue gas outside the furnace from the flue gas inside the furnace to protect the environment, but also can purge the ash attached to the outer surface of the metal hose due to entering the furnace to prevent corrosion of the metal hose.

[0012] Preferably, the transmission gear assembly includes a synchronous belt 2, a synchronous belt 3, and a friction belt. The synchronous belt 2 is arranged above the driving wheel, the synchronous belt 3 is arranged outside the main shaft, and the friction belt is arranged on the top of the synchronous belt 3.

[0013] Preferably, tensioner 1 and tensioner 2 are provided on the outside of the friction belt, tensioner 3 is provided on the outside of the synchronous belt 2, and tensioner 4 is provided on the outside of the synchronous belt 3.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Water is transported into the metal hose through the water inlet pipe, and the metal hose enters the boiler flue. Then, water enters the flue through the check valve and nozzle at the end of the metal hose to clean the flue. The equipment does not affect the operation of the boiler during online cleaning. It uses water as the cleaning medium, and the operating cost is lower than that of steam soot blowing. It also has flexible layout. A boiler only needs one host to achieve full coverage of two and three channels, saving investment costs.

[0016] 2. By placing the metal hose reel into the hose cage and synchronizing the vertical lifting of the hose, the metal hose reel can be placed in the cage to save space. During cleaning, the flue gas is sealed in the flue and does not leak into the external environment. The equipment is compact and can be flexibly moved to various cleaning points. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model Figure 1 ;

[0019] Figure 3This is a schematic diagram of the internal structure of the shell of the utility model Figure 2 ;

[0020] Figure 4 This is a structural diagram of the transmission gear assembly of the utility model.

[0021] In the figure: 1. Main engine hanging plate; 2. Main engine bracket; 3. Hose lifting motor; 4. Synchronous belt 1; 5. Main shaft; 6. Water inlet pipe; 7. Hose cage; 8. Metal hose; 9. Metal hose guide assembly; 10. Metal hose pinch wheel; 11. Transmission gear assembly; 111. Synchronous belt 2; 112. Synchronous belt 3; 113. Friction belt; 114. Tensioner 1; 115. Tensioner 2; 116. Tensioner 3; 117. Tensioner 4; 12. Drive wheel; 13. Hemispherical head; 14. Check valve; 15. Nozzle; 16. Purge and seal compressed air pipeline. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-3As shown, the main unit of the hydraulic dust cleaning system includes a main unit bracket 2, a main shaft 5, a water inlet pipe 6, a metal hose 8, a metal hose guide assembly 9, a metal hose pinch wheel 10, a transmission gear assembly 11, and a drive wheel 12; a shell is fixedly installed inside the main unit bracket 2, and the main shaft 5 is rotatably connected to the inside of the shell. The water inlet pipe 6 and the metal hose 8 are both arranged inside the main unit bracket 2, the metal hose guide assembly 9 is arranged at one end of the metal hose 8, the metal hose pinch wheel 10 is arranged at one end of the metal hose guide assembly 9, the transmission gear assembly 11 and the drive wheel 12 are both arranged inside the shell, the metal hose pinch wheel 10 is the main component of the hydraulic dust cleaning, and the metal hose 8 is connected to the drive wheel 12 and the metal hose. The tube pressing wheel 10 relies on the friction between the metal hose 8 and the driving wheel 12 to operate. When the metal hose pressing wheel 10 is pressed tightly, the friction between the metal hose 8 and the driving wheel 12 increases, and the lifting speed of the metal hose 8 is accelerated. On the contrary, when the metal hose pressing wheel 10 is pressed loosely, the friction between the metal hose 8 and the driving wheel 12 is reduced, and the lifting speed of the metal hose 8 is slowed down. A hose lifting motor 3 is fixedly installed on the top of the main frame 2, and a synchronous belt 4 is provided on the top of the main shaft 5. The hose lifting motor 3 can drive the main shaft 5 to rotate through the synchronous belt 4. A main frame hanging plate 1 is fixedly installed on the top of the main frame 2, and the number of the main frame hanging plates 1 is two, and both main frame hanging plates 1 are provided with Four mounting holes, the device is hung under the track beam through the main machine hanging plate 1, and the main machine is controlled by the upper and lower walking motors to move to various cleaning points. A hose cage 7 is provided inside the shell, and the metal hose 8 is coiled inside the hose cage 7. The hose cage 7 is provided to limit the metal hose 8. The metal hose 8 is coiled in order from the bottom to the top in the hose cage 7. A hemispherical head 13 is provided at the bottom of the metal hose 8, and a check valve 14 is provided at the bottom of the hemispherical head 13. A nozzle 15 is provided at the bottom of the check valve 14. A purge sealing compressed air pipeline 16 is provided on the main machine bracket 2. The purge sealing compressed air pipeline 16 can introduce the sealed compressed air into the middle of the hemispherical head 13, forming a A layer of high-pressure air film is formed to seal the gap between the metal hose 8 and the hemispherical head 13. This layer of high-pressure air film can not only separate the flue gas outside the furnace from the flue gas inside the furnace to protect the environment, but also blow away the ash attached to the outer surface of the metal hose 8 due to entering the furnace to prevent the metal hose 8 from corroding. When the hydraulic cleaning system is running, the cleaning hole at the operating point is open. At this time, due to the disturbance of the cleaning water and the positive pressure that may appear in the furnace, the flue gas in the furnace will leak to the outside of the furnace and pollute the environment. Taking this problem into consideration, a hemispherical head 13 is set at the bottom of the main machine. During operation, the hemispherical head 13 falls onto the furnace top guide pipe. There is a semicircular head matching the hemispherical head 13 on the upper part of the guide pipe to separate the flue gas outside the furnace from the flue gas inside the furnace.

[0024] Specifically, after the hydraulic cleaning host arrives at the cleaning point, the hose lifting motor 3 is started, and the transmission is driven by the synchronous belt 4 and the main shaft 5, driving the transmission gear assembly 11 to operate and the driving wheel 12 to rotate. The metal hose 8 is introduced into the running track of the driving wheel 12 by the metal hose guide assembly 9, first running downward to purge the flue, and then returning after reaching the bottom of the flue, and then purge the flue upward again. When it reaches the top of the flue, the water supply is stopped, and the metal hose 8 is then placed in the hose cage 7 by the guide plate of the metal hose guide assembly 9. The hydraulic cleaning host runs to the next cleaning point via the track for another cleaning and flushing.

[0025] like Figure 4 As shown, the transmission gear assembly 11 includes a synchronous belt 2 111, a synchronous belt 3 112, and a friction belt 113. The synchronous belt 2 111 is arranged above the driving wheel 12, the synchronous belt 3 112 is arranged outside the main shaft 5, and the friction belt 113 is arranged on the top of the synchronous belt 3 112. The outside of the friction belt 113 is provided with a tensioner 114 and a tensioner 2 115, the outside of the synchronous belt 2 111 is provided with a tensioner 3 116, and the outside of the synchronous belt 3 112 is provided with a tensioner 4 117. The lifting speed of the metal hose 8 and the winding speed in the hose cage 7 must be synchronized, otherwise it will affect the operation of the main machine. This synchronization is adjusted by adjusting the contact surface of the friction belt 113 and the friction pulley or the tightening and loosening of the metal hose 8 and the metal hose pressure wheel 10 through the tensioner 114 and the tensioner 2 115.

[0026] Specifically, the transmission gear assembly 11 is driven by the main shaft 5, and the synchronous belt 2 111 connects the gear group with the drive wheel 12 and the gear box to drive the drive wheel 12 to rotate so that the metal hose 8 rises and falls. The synchronous belt 3 112 drives the transmission gear assembly 11 and the drive wheel 12 to rotate 360 ​​degrees along the main shaft 5 as a whole to retract and release the metal hose 8 circumferentially along the hose cage 7.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. Hydraulic cleaning system host, characterized by: include: Main frame (2), main shaft (5), water inlet pipe (6), metal hose (8), metal hose guide assembly (9), metal hose pressing wheel (10), transmission gear assembly (11), driving wheel (12); A housing is fixedly mounted inside the main frame bracket (2); the main shaft (5) is rotatably connected to the inside of the housing; the water inlet pipe (6) and the metal hose (8) are both arranged inside the main frame bracket (2); the metal hose guide assembly (9) is arranged at one end of the metal hose (8); the metal hose pressing wheel (10) is arranged at one end of the metal hose guide assembly (9); and the transmission gear assembly (11) and the driving wheel (12) are both arranged inside the housing.

2. The main unit of the hydraulic dust cleaning system according to claim 1 is characterized in that: A hose lifting motor (3) is fixedly mounted on the top of the main frame bracket (2), and a synchronous belt (4) is provided on the top of the main shaft (5).

3. The main unit of the hydraulic dust cleaning system according to claim 1 is characterized in that: A mainframe hanging plate (1) is fixedly mounted on the top of the mainframe bracket (2), and there are two mainframe hanging plates (1), each of which is provided with four mounting holes.

4. The main unit of the hydraulic dust cleaning system according to claim 1 is characterized in that: A hose cage (7) is provided inside the shell, and the metal hose (8) is coiled inside the hose cage (7).

5. The main unit of the hydraulic dust cleaning system according to claim 1 is characterized in that: A hemispherical sealing head (13) is provided at the bottom of the metal hose (8), a check valve (14) is provided at the bottom of the hemispherical sealing head (13), a nozzle (15) is provided at the bottom of the check valve (14), and a purge sealing compressed air pipeline (16) is provided on the main frame bracket (2).

6. The main unit of the hydraulic dust cleaning system according to claim 1 is characterized in that: The transmission gear assembly (11) includes a synchronous belt 2 (111), a synchronous belt 3 (112), and a friction belt (113). The synchronous belt 2 (111) is arranged above the driving wheel (12), the synchronous belt 3 (112) is arranged outside the main shaft (5), and the friction belt (113) is arranged on the top of the synchronous belt 3 (112).

7. The main unit of the hydraulic dust cleaning system according to claim 6 is characterized in that: The outside of the friction belt (113) is provided with a tensioner 1 (114) and a tensioner 2 (115), the outside of the synchronous belt 2 (111) is provided with a tensioner 3 (116), and the outside of the synchronous belt 3 (112) is provided with a tensioner 4 (117).

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