Ventilation and dust removal system for a shot blasting machine

Abstract

This utility model discloses a ventilation and dust removal system for a shot blasting machine, including a chamber, a primary dust removal device, and a secondary dust removal device located beside the chamber and operating together. The primary dust removal device enables the recycling of the dust-collecting airflow, reducing heat loss during operation. It includes a cartridge bag filter, an outlet duct, a return duct, and a primary settling box. The fan outlet at the top of the cartridge bag filter is connected to the top of the chamber, away from the cartridge bag filter, via the outlet duct. The bottom of the chamber's side wall facing the cartridge bag filter is connected to the cartridge bag filter via the return duct and the primary settling box. The secondary dust removal device creates negative pressure within the chamber to prevent dust from overflowing and polluting the surrounding environment. It includes a cartridge filter, a collection pipe, and a secondary settling box. The fan outlet at the top of the cartridge filter is directly connected to the outside atmosphere. The bottom of the chamber's side wall facing the cartridge filter is connected to the cartridge filter via the collection pipe and the secondary settling box.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for shot peening machines, and specifically to a ventilation and dust removal system for shot peening cleaning machines. Background Technology

[0002] Shot peening machines are casting equipment that uses high-speed shot blasting to clean or strengthen the surface of castings. During shot peening, a large amount of impurities and dust are often generated, with shot and dust overflowing from the peening chamber. Current shot peening machines primarily use airflow dust collection, with dust being simply filtered and sucked out through a direct-connected dust collector. This direct emission of dust into the atmosphere easily pollutes the work environment, failing to meet current environmental protection requirements and impacting the health of workers. Furthermore, when high-speed steel shot is output, the contact between the shot and the workpiece generates significant heat. Traditional dust collection methods directly release this heat into the atmosphere, leading to heat loss and increased energy consumption. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the existing technology and provide a ventilation and dust removal system for shot blasting machines.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a ventilation and dust removal system for a shot blasting machine, including a chamber, a first dust removal device and a second dust removal device arranged side by side of the chamber and operating together. The first dust removal device includes a cartridge bag filter, an exhaust duct, a return duct, and a first settling box. The cartridge bag filter is placed on the ground side of the chamber, and its top fan outlet is connected to the inlet of the exhaust duct. The outlet of the exhaust duct is connected to the top of the chamber away from the cartridge bag filter. The inlet of the return duct is connected to the bottom of the side wall of the chamber facing the cartridge bag filter, and its outlet is connected to the inlet of the first settling box. The outlet of the first settling box is connected to the dust collector connection pipe of the cartridge bag filter.

[0005] The second dust removal device includes a cartridge dust collector, a collection pipe, and a second settling box. The cartridge dust collector is placed on the ground next to the aforementioned cartridge bag dust collector, and its top fan outlet is connected to the outside atmosphere. The inlet end of the collection pipe is connected to the bottom of the side wall of the chamber facing the cartridge dust collector, and its outlet end is connected to the inlet of the aforementioned second settling box. The outlet of the second settling box is connected to the dust collector pipe of the cartridge dust collector.

[0006] Furthermore, the top of the cartridge bag dust collector is equipped with two fans, and the air outlets of the two fans are connected to the air inlet of the above-mentioned air outlet pipe through a collection box.

[0007] Furthermore, the exhaust pipe of the first dust removal device includes a horizontal pipe and a vertical pipe connected in a "T" shape. The middle part of the horizontal pipe is connected to the outlet end of the vertical pipe through a T-shaped pipe. The bottom of the horizontal pipe is provided with multiple outwardly flared exhaust ports. Correspondingly, the top of the chamber is provided with multiple air inlets on the side away from the dust removal device.

[0008] Furthermore, the bottom of the side wall of the chamber facing the filter bag dust collector is provided with two dust outlet windows. There are two return air ducts, and their inlet ends are connected to the corresponding dust outlet windows through inlet end connectors that are flared outwards in a trumpet shape. The outlet ends of the two return air ducts are connected to the inlet of the No. 1 settling box through a T-junction.

[0009] Furthermore, a fan is provided at the top of the cartridge dust collector, and the air outlet of the fan is directly connected to the outside atmosphere.

[0010] Furthermore, the bottom of the side wall of the chamber facing the cartridge dust collector is provided with two dust outlet windows. There are two collection pipes, the inlet end of which is connected to the corresponding dust outlet window through a collection end connector that is flared outward in a funnel shape. The outlet ends of the two collection pipes are connected to the inlet of the second settling box through a three-way pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention has a simple structure. By setting two sets of dust removal devices that operate together, the first dust removal device realizes dust removal and filtration, and the circulation of internal airflow, reducing heat loss during operation and improving the operation quality of shot blasting machine; the second dust removal device realizes negative pressure inside the chamber, avoiding dust overflow during cleaning and avoiding pollution of the surrounding environment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention (top view);

[0013] Figure 2 This is a schematic diagram of the overall structure of the No. 1 dust removal device in this utility model;

[0014] Figure 3 This is a front view of the No. 1 dust removal device in this utility model;

[0015] Figure 4 This is a top view of the No. 1 dust removal device in this utility model;

[0016] Figure 5 This is a schematic diagram of the overall structure of the No. 2 dust removal device in this utility model;

[0017] In the diagram: 1. Chamber, 2. Dust removal device No. 1, 3. Dust removal device No. 2, 11. Air inlet, 21. Cartridge bag filter, 22. Fan No. 1, 23. Collection box, 24. Air outlet duct, 25. Return air duct, 26. Settling box No. 1, 27. Dust collector connection pipe, 28. Maintenance platform, 29. Inlet end connector, 241. Longitudinal pipe, 242. Transverse pipe, 243. Air outlet interface, 251. T-connector, 31. Cartridge filter, 32. Fan No. 2, 33. Collection pipe, 34. Collection end connector, 35. T-connector, 36. Settling box No. 2, 37. Dust collector connection pipe, 38. Maintenance platform. Detailed Implementation

[0018] It should be noted that in the description of this utility model, terms such as "upper", "lower", "front", "rear", "top", "bottom", "lateral", and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship of each component in this utility model and do not specifically mean that any component in this utility model must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation on this utility model.

[0019] Furthermore, in utility models, descriptions such as "first," "second," "number one," and "number two" are for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of those features.

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0021] like Figure 1 As shown, a ventilation and dust removal system for a shot blasting machine includes a chamber 1, a primary dust removal device 2 and a secondary dust removal device 3 located beside the chamber 1, combined with... Figures 2 to 4As shown, the first dust removal device 2 specifically includes a cartridge bag dust collector 21, an outlet duct 24, a return duct 25, and a first settling box 26. The cartridge bag dust collector 21 is fixedly installed on the ground in front of the chamber 1. Two first fans 22 are fixedly installed at its top, arranged side by side. The outlet ends of the two first fans 22 are sealed and connected to the collection box 23. After converging in the collection box 23, the air flows from its outlet to the inlet end of the outlet duct 24. The outlet duct 24 is erected upwards to the top of the chamber 1. It has an overall T-shaped structure and includes a longitudinal pipe 241 and a... The horizontal pipe 242 is connected to the other two via a tee. The bottom of the horizontal pipe 242 is connected to multiple air outlet interfaces 243, all of which are arranged outward to increase the air outlet area. Correspondingly, the top of the chamber 1, on the side away from the filter bag dust collector 21, is provided with multiple air inlets 11. The air outlet interfaces 243 at the bottom of the horizontal pipe 242 are fixedly connected to the corresponding air inlets 11 by flanges, and the two are relatively sealed. The length of the horizontal pipe 242 is close to the horizontal length of the chamber 1, so that the air inlet surface can almost cover the entire chamber 1. The chamber 1 has two dust outlet windows at the bottom of the front wall facing the filter bag dust collector 21. Two return air ducts 25 are provided, each with a fixedly connected flared inlet connector 29 at its inlet end. Each inlet connector 29 is sealed to the outside of the dust outlet window. The outlets of the two return air ducts 25 converge via a T-junction 251 to the inlet of the settling box 26. The settling box 26 is located beside the filter bag dust collector 21, and its outlet is connected to the dust collector connection pipe 27 of the filter bag dust collector 21 via a right-angle bend. The dust removal device 2, through the output of dual fans, not only achieves the recovery and filtration of internal dust but also enables airflow circulation through the outlet duct 24, reducing heat loss and energy consumption during operation.

[0022] Combination Figure 5As shown, the aforementioned second dust removal device 3 includes a cartridge dust collector 31, a collection pipe 33, and a second settling box 36. The cartridge dust collector 31 is fixedly installed on the ground next to the aforementioned cartridge bag dust collector 21, and a second fan 32 is fixedly installed at its top. The outlet of the second fan 32 is directly connected to the outside atmosphere. There are two collection pipes 33, and the inlet end of each collection pipe 33 is fixedly connected to a funnel-shaped collection end connector 34. Correspondingly, two secondary dust outlet windows are opened at the bottom of the front side wall of the chamber 1 facing the cartridge dust collector 31. The collection end connector 34 is connected to the outside of the corresponding secondary dust outlet window in a sealing manner. The outlet ends of the two collection pipes 33 are connected to the air inlet of the secondary settling box 36 through a three-way pipe 35. The secondary settling box 36 is located on the side of the cartridge dust collector 31, and its air outlet is connected to the dust collector pipe 37 of the cartridge dust collector 31 in a sealing manner through a right-angle bend. Through the direct exhaust operation of the secondary fan 32 in the secondary dust removal device 3, the internal dust is filtered and cleaned, while negative pressure is achieved inside the chamber 1 to prevent the overflow of internal dust, impurities, and steel shot.

[0023] All connections between the above-mentioned pipe fittings and connections between the various structures are sealed. In addition, for ease of assembly and maintenance, the above-mentioned pipe fittings can be assembled by sealing multiple sections of corresponding straight pipes and bends.

[0024] The aforementioned filter bag dust collector 21 is equipped with a maintenance platform 28, and the filter cartridge dust collector 31 is equipped with a maintenance platform 38, which facilitates operation and maintenance by staff.

[0025] A further optimized technical solution is that a filter screen can be detachably installed at the air inlet 11 on the aforementioned chamber 1 to improve the cleanliness of the airflow circulating into the chamber 1.

[0026] The relevant technical features not mentioned or described in detail in the above embodiments can be achieved by adopting or referencing relevant technical solutions in the existing technology.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A blast cleaning machine ventilation dust extraction system characterised in that: The system includes a chamber, a No. 1 dust collector, and a No. 2 dust collector located beside the chamber. The No. 1 dust collector includes a cartridge bag filter, an outlet duct, a return duct, and a No. 1 settling box. The cartridge bag filter is placed on the ground beside the chamber, and its top fan outlet is connected to the inlet of the outlet duct. The outlet of the outlet duct is connected to the top of the chamber away from the cartridge bag filter. The inlet of the return duct is connected to the bottom of the side wall of the chamber facing the cartridge bag filter, and its outlet is connected to the inlet of the No. 1 settling box. The outlet of the No. 1 settling box is connected to the dust collector connection pipe of the cartridge bag filter. The second dust removal device includes a cartridge dust collector, a collection pipe, and a second settling box. The cartridge dust collector is placed on the ground next to the aforementioned cartridge bag dust collector, and its top fan outlet is connected to the outside atmosphere. The inlet end of the collection pipe is connected to the bottom of the side wall of the chamber facing the cartridge dust collector, and its outlet end is connected to the inlet of the aforementioned second settling box. The outlet of the second settling box is connected to the dust collector pipe of the cartridge dust collector.

2. The shot blasting machine ventilation dust removal system according to claim 1, characterized in that: The top of the cartridge bag dust collector is equipped with two fans, and the air outlets of the two fans are connected to the air inlet of the above-mentioned air outlet pipe through a collection box.

3. The blast cleaning machine ventilation system of claim 1, wherein: The exhaust pipe of the No. 1 dust removal device includes a horizontal pipe and a vertical pipe connected in a "T" shape. The middle part of the horizontal pipe is connected to the outlet end of the vertical pipe through a T-shaped pipe. The bottom of the horizontal pipe is provided with multiple outwardly flared exhaust ports. Correspondingly, the top of the chamber is provided with multiple air inlets on the side away from the dust removal device.

4. The blast cleaning machine venting system of claim 1, wherein: The chamber has two dust outlet windows at the bottom of the side wall facing the cartridge bag dust collector. There are two return air ducts, and their inlet ends are connected to the corresponding dust outlet windows through flared inlet end connectors. The outlet ends of the two return air ducts are connected to the inlet of the No. 1 settling box through a T-junction.

5. The shot blasting machine ventilation system according to claim 1, characterized in that: The top of the cartridge dust collector is equipped with a fan, and the air outlet of the fan is directly connected to the outside atmosphere.

6. The shot blasting machine ventilation system according to claim 1, characterized in that: The chamber has two dust outlet windows at the bottom of the side wall facing the cartridge dust collector. There are two collection pipes, and their inlet ends are connected to the corresponding dust outlet windows through a funnel-shaped collection end connector. The outlet ends of the two collection pipes are connected to the inlet of the second settling box through a three-way pipe.

Images