CN207578199U - A kind of environment-friendly type strength recycles sand blasting room - Google Patents

Abstract

The utility model discloses an environment-friendly air recovery sandblasting room, which comprises a pit and a room body. Grid floor, under the grid floor, there are multiple hourglasses arranged in a matrix, the bottom of the hourglass is connected to the pneumatic stacker through a pipeline, and a sand collection box is arranged under the pneumatic stacker, and the sand collection box passes through a pipeline connected to the cyclone separator, and the cyclone separator is connected to the second dust remover; the side of the house body is provided with a dust suction port, and the dust suction port is connected to the first dust remover through a dust suction pipe, and the house The top of the body is also provided with a number of supplementary air outlets and lighting lamps. The utility model has reasonable structural design, low comprehensive operation cost and energy saving; adopts the sand material recovery cycle mode without transmission conveying machinery, has low failure rate and is maintenance-free; the sand return structure of the honeycomb floor does not need to dig deep pits or use floor kangs, The cost of civil engineering and the construction period are greatly reduced; the sandblasting chamber body adopts the dust suppression circulation mode in which the upper part is supplemented with air, and the lower part and the side part can be sucked.

Description

An environment-friendly air recovery sandblasting room

technical field

The utility model belongs to the technical field of mechanical manufacturing, in particular to an environment-friendly air recovery sandblasting room.

Background technique

The existing air recovery sandblasting room cannot achieve dust removal in the room, which makes the working environment dusty and greatly pollutes the working environment.

Utility model content

Purpose of the utility model: The purpose of the utility model is to provide an environment-friendly air recovery sandblasting room in order to solve the deficiencies in the prior art.

Technical solution: An environment-friendly air recovery sandblasting room described in the utility model includes a pit and a room body, the pit is set under the room body, a gate is provided on one side of the room body, There is a grid floor on the ground, and a plurality of hourglasses arranged in a matrix are arranged under the grid floor. The sand box is connected to the cyclone separator through a pipeline, and the cyclone separator is connected to the second dust collector; the side of the house body is provided with a dust suction port, and the dust suction port is connected to the first dust collector through a dust suction pipe , the top of the house is also provided with a number of supplementary air outlets and lighting lamps.

Further, the depth of the pit is not less than 1mm, the width is not less than 2m, and the length is not less than 10m.

Further, the house body is made of 100*100mm square pipe as the basic frame, and the outer walls are made of 50mm*12k*0.476 thick color steel sandwich panels, and the color steel sandwich layer is polystyrene foamed plastic.

Further, the gate adopts a manual folding type, and a safety gate is also provided on the side of the room.

Further, wear-resistant rubber with a thickness of 5 mm is pasted around the inner wall of the room, and wear-resistant rubber with a thickness of 2 mm is pasted on the ceiling as a protective layer.

Further, the grid floor is welded by 40*4mm steel bars.

Further, the first dust collector and the second dust collector both adopt modular filter cartridge dust collectors.

Further, a filtering device is provided at the air supply port.

Beneficial effects: the utility model has reasonable structural design, low comprehensive operation cost, and energy saving; adopts the sand recycling mode without transmission conveying machinery, has low failure rate, and is maintenance-free; the sand return structure of the honeycomb floor does not need to dig deep pits or On the ground floor, the cost of civil construction and the construction period are greatly reduced; the sandblasting chamber adopts a dust suppression circulation method in which the upper part is supplemented with air, and the lower part and the side part can be sucked.

Description of drawings

Fig. 1 is the structural front view of the present utility model;

Fig. 2 is the side view of Fig. 1;

FIG. 3 is a top view of FIG. 1 .

Detailed ways

The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

An environment-friendly air recovery sandblasting room as shown in Figures 1 to 3, includes a pit 1 and a room body 2, the pit 1 is arranged below the room body 2, and one side of the room body 2 is provided with The gate 3 and the ground of the room body 2 are provided with a grid floor 4, and a plurality of hourglasses 5 arranged in a matrix are arranged under the grid floor 4. A sand collection box 10 is provided below the feeder 14, and the sand collection box 10 is connected to a cyclone separator 11 through a pipeline, and the cyclone separator 11 is connected to the second dust collector 9; The dust suction port is connected to the first dust remover 8 through the dust suction pipe 7 , and several air supply ports 12 and lighting lamps 13 are provided on the top of the house body 2 .

The body of the sandblasting room is made of 100*100mm square tube as the basic frame, and the outer wall is made of 50mm*12k*0.476 thick color steel sandwich panels. It has beautiful appearance, convenient installation, anti-corrosion and durability. The sandwich layer of color steel plate is polystyrene foamed plastic, compared with the conventional sandblasting room made of pure steel plate, it has the following characteristics:

(1) The house has good corrosion resistance, weather resistance and waterproof performance, and can be placed in the open air: if the sandblasting house is placed outdoors, it only needs to build a simple rainproof shed, and there is no need to build another factory building, which greatly reduces the cost of infrastructure construction. cost;

(2) Good sound insulation and heat insulation function:

Since the sandblasting chamber body is made of sandwich color steel plate, and the sandwich material is polyethylene foam plastic, it has good heat insulation function. It can reduce the high-frequency sharp noise of 1500HZ-2000HZ generated during sandblasting to below 500HZ, greatly improving the noise environment;

(3) Simple and beautiful appearance:

Using color steel plate structure, the sandblasting room can be formed at one time, the shape is simple and smooth, beautiful and durable. There is no need for surface treatment and decoration work;

(4) Migration and transformation are very convenient:

The whole body of the TS sandblasting room adopts a modular design. Due to the characteristics of the color steel plate itself, it is light in weight, easy to cut, can be disassembled and assembled, and has no foundation, so you can move and increase or decrease units at will. This is especially suitable for disassembly, transfer and secondary use when necessary.

According to the technological process of the customer's workshop, a working door can be opened at one end of the room. The opening method of the working door is manual folding.

The size of the manual gate is 4x4.5 meters. In addition, an 850×1900mm safety door 6 is set on the side of the sandblasting room for operators to enter and exit. All the door bodies are made of section steel as the skeleton, color steel plate as the door panel, and a protective rubber plate is fixed inside the door panel. Be firm and reliable, well sealed and open and close freely.

There is an observation window on the working door, so that the personnel outside the room can easily observe the sandblasting operation inside the room. At the same time, it is conducive to safe production and prevents accidents. In order to avoid breaking the window glass during sandblasting, we have installed a protective plate inside the window glass. When it is necessary to observe the situation in the sandblasting room, open the protective plate, and put down the protective plate after the observation is completed.

In order to effectively prevent the sand from spraying or rebounding on the wall and ceiling of the sandblasting room during the sandblasting (shot) process, 5mm thick wear-resistant rubber is pasted on the inner wall of the room and 2mm thick wear-resistant rubber is pasted on the ceiling. Rubber acts as a protective layer. The rubber protective plate around the wall uses beading to press the rubber plate of a certain width on the steel frame of the house, and the adjacent rubber plates are arranged in an overlapping manner, which can effectively ensure that the color steel plate wall and the wall frame will not Abraded by sand. When the wear-resistant rubber plate is damaged, it should be replaced with a new wear-resistant rubber plate quickly.

The top of the environment-friendly air recovery sandblasting room must be equipped with an external air inlet, the purpose of which is to make the exhaust and dust removal system of the entire sandblasting room form an external circulation state.

The air inlet of this room is designed as a filter structure. Different numbers of air inlets are set according to the size of the customer's room. During the sandblasting operation, the external air entering from the air inlet is evenly distributed to the entire horizontal section of the sandblasting room, and then moves from top to bottom to make the flow velocity of the horizontal section of the sandblasting room uniform. Simultaneously, the ejected sand material cannot splash to the outside of the sandblasting room body through the air inlet.

The floor of the sandblasting room adopts metal grille, which is conducive to the collection and discharge of abrasives (sand) on the one hand, and is conducive to the walking safety of workers on the other hand. In order to prevent large-sized impurities and foreign matter from entering the sand return pipe through the honeycomb during working hours and blocking the spray gun, this equipment is equipped with a filter screen at the lower part of the grille (honeycomb floor) to prevent impurities and foreign matter from entering. The cleaning of impurities and foreign objects is very convenient. Just open the grille laid on the ground inside the room to clean it thoroughly, so as to ensure that the recycling pipe network can work smoothly for a long time.

The floor grid is welded by 40*4mm steel bars. The specific format and quantity are determined by the size of the house and the rail spacing of the work trolley. Usually, the load-bearing capacity of the floor grid installed inside the sandblasting room is more than 300 kilograms per square meter. If a larger load-bearing requirement of the floor grid is required, the customer needs to put forward special design requirements.

Due to the high dust concentration in the room during the sandblasting operation, especially when the sandblasting abrasive used by the customer is an abrasive with a high crushing rate such as quartz sand, the illumination in the room must be guaranteed. According to the general specification, the illumination in the sandblasting room must be ≥400LUX. Considering that the splash of steel sand will damage the lamps, it is designed to place the lamps outdoors, illuminate the room through tempered glass, and install 10 (400W) explosion-proof lamps on the top of the room to ensure good lighting effects. The roof of this scheme adopts deep-lit anti-riot structure metal halide lamps as lighting tools. The light of this type of lamp has the characteristics of strong ability to penetrate dust, and is especially suitable for use in working conditions where dust is relatively large inside the house. The roof also specially reserves the maintenance channel for lamps, which is convenient for the replacement of protective glass and the maintenance of lamps.

The bottom of the sandblasting room is an area for collecting sand and arranging dust suction pipelines, which are specially used to collect abrasives scattered during sandblasting and dust generated during sandblasting. In this scheme, steel plates are used in the sand collection area to make a sealed inverted "V" shape, which is conducive to the recovery and capture of abrasives and dust.

The detachable honeycomb floor of the sand room module is based on the honeycomb floor technology of ABB Company in the United States. The floor and recycled pipes are made into a detachable modular combination. It makes the maintenance of the equipment extremely simple and fast, saves a lot of replacement parts, and reduces the maintenance cost of the equipment in the long-term use process. This structure was first created by our company and successfully applied to many customers such as the sandblasting room of China Yutong Bus Zhengzhou Factory Environmentally friendly air recycling sandblasting room project. The sandblasting room with this type of structure does not need to dig a pit.

The bottom of the honeycomb floor is evenly covered with small honeycomb buckets, which are connected to the gas distribution pipeline under the small bucket, and the wind speed of the gas distribution pipeline and the main gas pipeline is greater than the suspension speed of the sand material; All the sprayed sand falls into the honeycomb-type small bucket, then falls into the air distribution pipe from the small bucket, and finally returns to the dust separator through the main air pipeline.

The honeycomb floor has a relatively quick and easy maintenance method. First, the structure of the honeycomb floor is simple, there are few parts that are easy to wear, and there are few parts that need maintenance; and the honeycomb floor adopts a modular combination method, which can easily disassemble each part and enter the maintenance point. Then Taisheng’s honeycomb floor made the easy-to-wear elbow and other parts into "standard parts", that is, made into standard replacement parts, connected with flange interface. When replacing, just open the bucket plate, loosen the interface, take out the worn parts and replace them with new ones. Parts are enough, no need to go to welding and cutting on site. Greatly facilitates daily maintenance.

In order to ensure the quality and efficiency of sandblasting, it is necessary to effectively separate the mixture of sand and dust recovered from the honeycomb floor. After the sand and dust are separated, the sand can continue to be recycled. The main function of the sand and dust separator is to separate sand and dust with high efficiency and high precision. The quality of the separation effect directly affects the sandblasting performance of the sandblasting machine and the filtration performance of the dust collector.

The sand dust separator adopts the two-stage wind force separator specially designed by our company for the sandblasting system. The first stage is a unique cyclone inertial separator, and the second stage is a screen separator, which can effectively remove the dust from the recycling system. The separated sand and dust are separated, and the separated complete sand is returned to the main machine of the sandblasting machine to continue to be recycled. The dust and broken sand are sent to the dust collector, and after being filtered, they are stored in the dust storage tank and wait for regular cleaning. The function of the cyclone inertia separator is to make the dust-containing gas rotate, and use the centrifugal force to capture the fine particles of dust from the airflow. This wind separation type separator has simple structure, stable performance, no moving parts, and is very convenient for maintenance and management. It is a widely used primary dust removal equipment, and the dust removal efficiency is generally about 90%. The separator configured in this equipment adopts the latest structure and is precisely designed. The lower end of the separation unit is equipped with a sand collector (storage box), and the outer side of the unit is equipped with a frame for maintenance and protection. The volute group on the separation unit is connected with the filter (filter element) dust collector, which is beneficial to reduce noise and improve the quality of the working environment),

By adjusting the adjustment mechanism on the sand and dust separator, the diameter of the separated sand material can be adjusted. It is suitable for sand and dust separation occasions such as glass beads, steel shot steel sand, quartz sand, and brown steel jade sand. The applicability is very strong.

During the working process of the sand and dust separator, the part affected by the high-speed impact of the sand is a vulnerable part. Our company has fully considered this problem in the design process, and made reliable protection for the inside of the pipeline, using high wear-resistant materials. A protective plate was made. During use, the protective plate can be inspected regularly, and when the protective plate is worn out, it should be replaced in time to avoid wearing out the wall of the dust separator before repairing. In this way, the original appearance of the equipment will not be damaged, and a lot of maintenance and repair time can be saved.

The dust removal system consists of suction and exhaust pipes, bottom and side dust suction ports, modular filter cartridge dust collector, dust exhaust fan, dust exhaust chimney and other components.

The working principle of the dust removal system:

In the sandblasting room, the dust removal system adopts the circulation dust collection method of upper air intake, lower and side exhaust air (see the working principle diagram of the room body). The clean air enters the sandblasting room from the top of the room, and the dust removal fan sucks the polluted gas in the room into the dust collector through each suction port for collection and treatment. Since the dust recovery suction ports of the environment-friendly pneumatic recovery sandblasting room are all arranged under the honeycomb sand suction floor and on the side wall of the room, the airflow drives the dust to move from top to bottom all the time, and the dust is always suppressed in the sandblasting area. The lower part of the room, so the dust concentration in the space above 0.5 meters in the sandblasting room is very low, the visibility is very high, and the working environment is good.

The sand recovery fan collects sand and dust from the honeycomb floor and enters the sand separator for sand and dust separation by winnowing. At the same time, it also sucks some useless dust into the filter element for dust collection and treatment, and the clean air is discharged out of the atmosphere. The dust exhaust pipes of the dust exhaust fan can be combined according to the needs, and finally enter the exhaust chimney to meet the standard requirements of the emission standard.

Due to the structural reasons of the traditional sand blasting room, the dust removal port is usually arranged on the top of the shot blasting room, and the flow direction of the dust is from bottom to top or horizontally, so the dust content in the shot blasting room is always very high during sandblasting operations. High, low visibility, poor working environment.

The modular filter cartridge dust collector is a key component of the dust removal process in the sandblasting room, and its working conditions directly affect the indoor environment and outdoor emission standards.

The dust collector adopts the internationally popular Torit downflow dust collector structure, which is consistent with the dust collector structure of the internationally renowned dust removal expert "Donaldson", and the filter cartridges can be interchanged, which can be equipped with American Donaldson filter cartridges or can be equipped with Use domestic filter cartridges. The arrangement of the filter elements is reasonable, combined and installed horizontally, and the effect is excellent for upper air intake, lower exhaust air, and high-pressure pulse pneumatic back-blowing; this structure is conducive to the introduction of dust-containing gas into the filter cartridges in the dust collector, and the uniform distribution. It is also conducive to the fall of the dust that is bounced off instantly by back blowing and cleaning, reducing the possibility of secondary adsorption; the lower exhaust structure is directly introduced into the fan through the clean air chamber, and the fan motor is floor-standing, which enhances the stability of the equipment and saves energy. Unnecessary waste caused by pipeline connections.

The dust collection hopper of the dust collector is equipped with two dust collection hopper cars, and adopts a quick connection structure, which is airtight and easy to open. The cleaner can easily open it, and then pull it to the designated position for dust treatment, without the need for other containers for shipment. The secondary flying caused by it will pollute the environment.

The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those who are familiar with this profession, without departing from the scope of the technical solution of the present utility model, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all without departing from the technical solution of the utility model Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (6)

1. An environment-friendly type pneumatic recovery sandblasting room, characterized in that: it comprises a pit (1) and a house body (2), the pit (1) is located below the house body (2), and the house body ( 2) A gate (3) is provided on one side, a grid floor (4) is provided on the ground of the room body (2), and a plurality of hourglasses (5) arranged in a matrix are arranged under the grid floor (4). The bottom of the hourglass (5) is connected to the pneumatic collector (14) through a pipeline, and a sand collecting box (10) is arranged below the pneumatic collecting machine (14), and the sand collecting box (10) is connected to the cyclone separator through a pipeline. device (11), the cyclone separator (11) is connected to the second dust remover (9); the side of the house body (2) is provided with a dust suction port, and the dust suction port passes through the dust suction pipe (7 ) is connected to the first dust remover (8), and the top of the house (2) is also provided with some supplementary air outlets (12) and lighting lamps (13); The depth of the pit (1) is not less than 1mm, the width is not less than 2m, and the length is not less than 10m; The house body (2) adopts 100*100mm square tube as the basic frame, and the outer wall is made of 50mm*12k*0.476 thick color steel sandwich board, and the color steel sandwich layer is polystyrene foamed plastic. 2. An environment-friendly air recovery sandblasting room according to claim 1, characterized in that: the gate (3) is manually foldable, and a safety door (6) is provided on the side of the room body (2). 3. An environment-friendly air recovery sandblasting room according to claim 1, characterized in that: the inner wall of the room body (2) is hung with 5mm thick wear-resistant rubber and the ceiling is hung with 2mm thick wear-resistant rubber. Grind rubber as a protective layer. 4. An environment-friendly air recovery sandblasting room according to claim 1, characterized in that: the grid floor (4) is welded by 40*4mm steel bars. 5. An environment-friendly air recovery sandblasting room according to claim 1, characterized in that: the first dust collector (8) and the second dust collector (9) both adopt modular filter cartridge dust collectors. 6. An environment-friendly air recovery sandblasting room according to claim 1, characterized in that a filtering device is provided at the air supply port (12).