CN207509041U - A kind of passing shot blasting machine separator - Google Patents

Abstract

The utility model discloses a separator for a through-type shot blasting cleaning machine, which comprises a casing, a drum screen arranged in the casing, a separation box, and a driving device; the inside and outside of the drum screen are respectively provided with an inner spiral piece and an outer spiral piece. , the driving device can drive the trommel to rotate, and there is a slag discharge port on the side of the trommel away from the feeding trough; the separation box is located under the trommel, with an air inlet on the outside of the separation box, a separation port on the bottom, and a separation box inside the separation box. The material funnel, the first separation channel, the second separation channel, the outlet of the material distribution funnel is facing the separation port, the first separation channel and the second separation channel are far away from the air inlet relative to the material distribution funnel, and the first separation channel and the second separation channel extend respectively out of the separation box and form the first leaking pill opening and the second leaking pill opening, the first separation channel is provided with a first filter plate near the outlet of the material distribution funnel, and the second separation channel is provided with a second filter plate near the outlet of the material distribution funnel. filter plate. The pellet separator proposed by the utility model has simple equipment, good separation effect on pellets and high separation efficiency.

Description

A separator for a pass-through shot blasting cleaning machine

technical field

The utility model belongs to the technical field of mechanical manufacturing, in particular to a separator for a through-type shot blasting cleaning machine.

Background technique

Since rods and pipes will form scales on the surface during the production process, the surface needs to be treated to improve the surface cleanliness of the workpiece, and can effectively eliminate internal stress and increase the strength and other mechanical properties of the workpiece. At present, shot blasting machines for processing rods or pipes on the market mainly work in the following way: workpieces (rods, pipes) enter the processing chamber, and are impacted by high-speed projectile beams, and the scale, dirt and other attachments on the surface are removed. clean up. When working, the bar or pipe advances through the processing chamber while rotating along the saddle-shaped roller table through the driving mechanism, and then the shot blasting machine processes its surface from different directions. On this kind of shot blasting machine, the workpieces need to be arranged at intervals on the roller table, resulting in a limited number of workpieces to be processed at the same time, low processing efficiency, manual loading and unloading is required, and large-scale automatic production cannot be realized. It is more troublesome to complete the circular delivery of projectiles in a deep pit, and the production cost is very high.

The separator is an important part of the shot blasting equipment. In the shot blasting equipment, the projectile hits the workpiece at a certain speed, and besides the projectile, there are oxide scales thrown off from the workpiece that fall on the bottom of the chamber. , sand, etc., in order to recycle the projectile, it is necessary to separate the projectile from the scale and sand. The separation effect of the existing shot material separator is not good, and the separated projectiles are still doped with some scale and sand particles, and the separated waste materials cannot be well utilized, and the separation effect is low. The above problems need to be improved urgently.

Utility model content

Purpose of the utility model: The purpose of the utility model is to provide a separator for a through-type shot blasting cleaning machine in order to solve the deficiencies in the prior art.

Technical solution: a separator for a through-type shot blasting cleaning machine described in the utility model, including a cleaning room, a shot blasting device, a conveying system, a hoist, a separator, a screw conveyor, a pill conveying pipeline and a dust removal system;

The cleaning room is composed of main and auxiliary cleaning rooms. It adopts a large chamber structure. The upper part of the chamber is box-shaped and the lower part is cone-shaped. The cleaning operation is carried out in a sealed chamber. Composed of chamber body, rubber curtain, and shot blasting chamber guard;

The shot blaster is distributed in the up and down, front and rear directions of the cleaning room, and is composed of a plurality of shot blaster equipment, and the shot blaster equipment is composed of impeller, blade, directional sleeve, and introduction pipe;

The conveying system is composed of a roller table and a frequency conversion speed regulating motor;

The hoist adopts a flat belt transmission hanging bucket type, and the shell is welded and formed, which is used to lift the pellet dust mixture of the screw conveyor to the top of the machine, and is composed of upper and lower transmission, cylinder, belt, hopper, etc.;

The separator includes a shell, a trommel installed in the shell, a separation box, and a driving device; the shell is provided with a feeding chute for receiving the pellet mixture, and the chute communicates with the trommel through a spiral separation device; , and outside are provided with inner helical pieces and outer helical pieces respectively. The driving device can drive the trommel to rotate, and the side of the trommel away from the feeding trough is provided with slag discharge; There is a separation port, and the inside of the separation box is equipped with a material distribution funnel, a first separation channel, and a second separation channel. For the separation port, the first separation channel and the second separation channel are located below the outlet of the distribution funnel, which are far away from the air inlet relative to the distribution funnel, and the first separation channel and the second separation channel extend out of the separation box respectively and form the first leakage pill mouth and the second leaking pill mouth, the first separation channel is provided with a first filter plate near the outlet of the material distribution funnel, and the second separation channel is provided with a second filter plate near the outlet of the material distribution funnel;

The screw conveyor is arranged at the bottom of the cleaning room, collects the mixture of pellets and dust, aggregates them and sends them to the elevator, and then sends them to the separator through the elevator, and the separator is transported to the cleaning room through the pill delivery pipeline;

The dust removal system is composed of a dust removal pipeline, a dust collector, a fan, and an air duct.

Further, the shot blaster includes 6-8 shot blaster equipment, and the shot blaster equipment adopts a double-disc linear blade high-efficiency shot blaster.

Further, the cleaning room is a multi-chamber assembly, the front and back are sealed rooms, and a multi-layer rubber curtain is installed inside to prevent bullets from flying out, and at the same time, there is a certain negative pressure in the room to prevent dust from escaping.

Further, the outer casing of the roller table is provided with a high chrome wear-resistant sheath and a limit ring.

Further, the screw conveyor includes a horizontal screw conveyor and a vertical screw conveyor.

Further, each brake tube of the said pill conveying pipeline is provided with a flashboard, which respectively cuts off the projectiles from the separator, so as to facilitate the maintenance of the respective shot blasters.

Further, the outlet of the distribution funnel is provided with a regulating plate for regulating flow.

Further, both the first filter plate and the second filter plate are inclined towards the air inlet.

Beneficial effects: the structure design of the separator of the utility model is reasonable, and the separation effect on the pellets is good and the separation efficiency is high; Adhesion to the surface of the steel, and improve the fatigue strength and corrosion resistance of the steel, improve the internal quality of the steel, and prolong its service life.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

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

Fig. 3 is the structural representation of separator of the present utility model;

Fig. 4 is a schematic structural view of the separation box in Fig. 3 .

Detailed ways

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

A pass-through shot blasting machine as shown in Figure 1 and Figure 2, including a cleaning chamber, a shot blaster, a conveying system, an elevator, a separator, a screw conveyor, a pill conveying pipeline and a dust removal system.

The cleaning room is composed of main and auxiliary cleaning rooms, which are large-cavity structures. The upper part of the chamber body is box-shaped, and the lower part is conical. The cleaning operation is carried out in a sealed cavity. Composed of rubber curtain and shot blasting room guard.

A. A total of 8 shot blasters are installed on the main chamber body, up and down, front and rear. The space structure has been tested and verified in practice, which can achieve the best cleaning of the workpiece.

B. The cleaning room is a multi-chamber combination, the front and back are sealed rooms, and a multi-layer rubber curtain is installed inside to prevent projectiles from flying out. At the same time, there is a certain negative pressure in the room to prevent dust from escaping.

C. The main chamber is equipped with a wear-resistant guard plate to protect the wall of the chamber from abrasion and prolong the service life of the chamber by more than ten times. At the same time, the reflection function of the projectile can be used to continue to effectively hit the surface of the workpiece, improving the quality of cleaning and cleaning. efficiency. Grids and pedals are installed on both sides of the conical pill collecting bucket to block debris, protect the screw conveyor, and facilitate maintenance personnel to walk.

D. The guard plate in the shot blasting chamber is covered and bolted with wear-resistant nuts to protect the head of the bolt from damage, and it is easy to disassemble and replace.

2. Conveyor system

(1) Structure

The roller table is divided into the indoor conveying roller table and the loading and unloading section conveying roller table. The speed of the roller table is controlled by a frequency conversion speed regulating motor.

The indoor roller table 1 is covered with high-chromium wear-resistant sheath and limit ring. The high-chromium wear-resistant sheath is used to protect the roller table and withstand the impact of projectiles. The limit ring can make the workpiece run at the predicted position to prevent deviation and cause ACCIDENT. Below the indoor roller table 1, there is also a recovery cabin 2 at the discharge port.

(2) Adjustment and use

When using, adjust the speed of the conveying system according to the cleaning effect of the workpiece, from slow to high speed, so as to achieve high-quality cleaning effect and good economic performance.

3. Shot blaster

(1) Structure

The shot blaster 4 is composed of impeller, blade, orientation sleeve, introduction pipe and so on. The projectiles flow into the shot wheel from the introduction pipe, and are thrown out through the directional sleeve after pre-acceleration. The blades continue to accelerate it and project it at high speed to achieve a strong impact on the workpiece, so as to achieve the purpose of cleaning.

(2) Adjust the use:

A. Adjustment of the projectile belt: first close the projectile gate, place the workpiece in the projectile area, and stop the roller table. After checking the safety, open the shot blaster, manually put a small amount of projectiles into the shot blasting tube, and wait for the shot blaster to stop. After running, pull the workpiece out to check whether the throwing position is suitable. If it is not ideal, deflect the directional sleeve up and down according to the need to test to confirm.

B. Uneven impeller wear will cause severe vibration of the high-speed blasting machine. Check the wear of the blades before each shift. When the blades have deep grooves or wear more than half, they should be replaced. The blades must be replaced symmetrically in pairs. The quality of the two blades is not the same. Greater than 4 grams.

C. Check the ammeter readings of the shot blaster, they should indicate the proper shot flow.

D. When the shot blaster does not completely stop rotating or the power is not cut off, it is not allowed to open the shot blaster guard.

4. Elevator

(1) Structure

Manufactured by Swiss GF company technology. The hoist 7 is a hanging bucket type driven by a flat belt, and the shell is welded and formed, which is used to lift the pellet and dust mixture from the lower screw conveyor to the top of the machine. It is mainly composed of upper and lower transmission, cylinder, belt, hopper and so on.

A. The hoist adopts large pulleys to increase friction, and the lower pulley adopts squirrel-cage anti-sand, anti-skid, and anti-deflection. The transmission belt runs smoothly and reliably, effectively improving the service life of the belt.

B. The upper and lower wheels of the hoist are welded into a polygonal structure with ribs, wheel plates and wheel drums to enhance friction, avoid slipping, and prolong the service life of the belt.

C. The upper and lower pulleys adopt outer spherical bearings with square seats, which can be automatically adjusted when subjected to vibration and impact, and have good sealing performance.

5. Separator

The structure diagram is shown in Figure 3 and Figure 4. Including: housing 31, drum screen 34 arranged in housing 31, separation box 35, driving device;

The housing 31 is provided with a feeding chute 32 for receiving the shot mixture, and the feeding chute 32 communicates with the trommel 34 through a spiral separation device 33;

The trommel 34 is provided with an inner helix and an outer helix respectively inside and outside, the driving device can drive the trommel 34 to rotate, and the trommel 34 is provided with a slag outlet on the side away from the feeding chute 32;

The separation box 35 is located below the trommel 34, the outside of the separation box 35 is provided with an air inlet 36, and the bottom is provided with a separation port 37. The inside of the separation box 35 is provided with a material distribution funnel 38, a first separation channel 39, and a second separation channel 310. The material funnel 38 corresponds to the outer spiral of the trommel 34 and is arranged to receive the pellets guided by the outer spiral. The outlet of the material distribution funnel 38 is facing the separation port 37, and the first separation channel 39 and the second separation channel 310 are located in the material distribution funnel 38 Below the outlet, its relative material distribution funnel 38 is away from the air inlet 36, and the first separation channel 39 and the second separation channel 310 stretch out the separation box 35 respectively and form the first leakage shot opening 311 and the second leakage shot opening 312, the first separation A first filter plate 313 is provided on the channel 39 near the outlet of the distribution funnel 38 , and a second filter plate 314 is provided on the side of the second separation channel 310 near the outlet of the distribution funnel 38 .

In the above scheme, the flow regulating plate 315 is provided at the outlet of the material distribution funnel 38. This design can adjust the flow of the pellets according to the actual work requirements, so as to further improve the separation efficiency and effect of the pellets.

In the specific design process, there is a deflector 316 at the outlet of the material distribution funnel 38. This design allows the shot to stay at a certain angle of inclination, so as to avoid the agglomeration of the shot and affect the separation effect.

In order to improve the separation effect, in the design, both the first filter plate 313 and the second filter plate 314 are inclined towards the air inlet 36, and the filtration accuracy of the first filter plate 313 is greater than that of the second filter plate 314.

In the separator proposed by the utility model, after the pellet mixture enters the feeding trough, the screw conveying device transports it to the drum screen for screening, and the large particle debris is guided by the inner spiral piece to the slag discharge port and discharged through the drum screen. The mixture of pellets, materials and dust is diverted from the outer spiral to the separation funnel. At this time, the air inlet enters the air for gravity winnowing. After the small particle shot and dust pass through the first filter plate, the small particle shot material flows out from the first leaking shot port, and the dust continues to move through the second filter plate and flows out at the second leaking shot port. The pellet separator proposed by the utility model has simple equipment, good separation effect on pellets and high separation efficiency.

6. Screw conveyor

(1) Structure

The lower part of the cleaning room is equipped with a screw conveyor and a shot chute, which can collect the shot dust mixture and send it to the hoist, and then to the separator through the hoist. The screw conveyor is composed of a horizontal screw conveyor 8 and a longitudinal screw conveyor 9.

(2) Adjustment and use

A. After the screw conveying shaft is installed, it should rotate flexibly without jamming.

B. Too many projectiles in the trough of the screw conveyor will increase the starting torque. If there is equipment failure, it should be eliminated in time. Do not add a large amount of shot to the pill bucket at one time, but slowly.

7. Pill delivery pipeline

The shot conveying pipeline has dual functions. Each brake tube is equipped with a ram, which cuts off the projectiles from the separator respectively, which is convenient for maintenance of each shot blaster. The opening size of the ram can adjust the shot blasting flow. There are ten sets of The cylinders can be combined arbitrarily according to the specifications of the cleaned workpieces, and the number of gates can be opened and closed to save energy, reduce wear on the machine, and ensure that the production needs are met.

8. Dust removal system

This system is mainly composed of two sets of dust removal pipelines, dust collector 11, fan 6 and air duct 3. The dust collector is a high-efficiency and environment-friendly filter cartridge dust collector with a dust removal efficiency of 99.9%, which meets the requirements of GB16297-1996 "Integrated Air Pollution Emission Standard" and GBJ14-93 industrial "three wastes" emission standard. After dust removal, it can be directly discharged into the air without purification equipment.

ZLC series downflow filter cartridge dust collector is a new generation of high-efficiency dust collector independently researched and developed by our company by absorbing the advanced technology of dust collectors at home and abroad. It has the advantages of low dropout and high efficiency.

The reasonable air inlet design makes the air distribution in the body more uniform and reduces the air resistance. Under normal operating conditions, the pressure drop between the air inlet and outlet flanges is only about 300Pa. The best filtering wind speed is 0.4-0.45 m/min.

The filter cartridge dust collector has the characteristics of small size, small running resistance, and good dust removal effect. The dust removal efficiency reaches 99.9%, and basically realizes "0" emission.

The dust collector adopts imported filter cartridge filter. The filter uses a new type of Japanese filter material, which is characterized by adhering a layer of ultra-submicron ultra-thin fibers to the general filter material. The fibers in the adhesion layer are arranged very closely, and the gap is only 1% of the bottom fiber. .

The filter cartridge is manufactured according to the unified standard, and the quick connection is adopted, which makes the filter cartridge disassembly and assembly very convenient, reduces the physical labor intensity of the workers, and improves the working conditions.

2. Structure and working principle

1. Structure

ZLC series filter cartridge dust collector is composed of dust collecting hopper, box body, fan, air duct, filter cartridge, pulse valve, pulse meter, bracket and so on.

The filter cartridge is structurally made into a folded cylindrical shape with an outer diameter of 330mm, an inner diameter of 220mm, and a cylinder height of 1000mm. The filtering area of a standard filter cartridge is 13m ² , while the filtering area of a bag filter of the same size is only 0.7m ² .

A layer of sub-micron ultra-thin fibers adheres to the general filter material, and the fibers of the adhesion layer are arranged very closely, and the gap is only 1% of the bottom layer of fibers. The extremely small sieve holes can block most of the submicron dust particles on the outer surface of the filter material, so that they cannot enter the bottom fiber. Therefore, a dust layer with good air permeability can be formed in the early stage to keep it low resistance and high efficiency. Since the dust cannot go deep into the filter material, it has the characteristics of low resistance and easy cleaning. This feature is incomparable to the bag filter.

2. Working principle

(1) Dust collector

During normal operation, the dust-laden air enters the dust collector from the air inlet on the top of the dust collector and passes through the filter cartridge. The dust is isolated and accumulated on the outer surface of the filter material, while the clean air enters the clean air chamber through the center of the filter cartridge, and finally passes through the filter cartridge. The air outlet on the lower (side) side of the dust collector is discharged.

When cleaning the filter cartridge, the timing controller activates the pulse valve to operate the membrane valve on the compressed air nozzle, and the high-pressure compressed air is sprayed out through the nozzle to remove the dust from the filter cartridge. The falling dust falls into the dust collector with the downward airflow.

The downflow filter cartridge dust collector is a dust collector that uses the downflow airflow to improve the dust removal efficiency.

(2) Electromagnetic pulse valve (DMF-Z)

The diaphragm divides the electromagnetic pulse valve into front and rear air chambers. When the compressed air is connected, the compressed air enters the rear air chamber through the orifice. At this time, the pressure of the rear air chamber will make the diaphragm close to the output port of the valve. is in the "off" state.

The pulsed electrical signal moves the armature of the solenoid valve, the vent hole of the vent chamber in the back of the valve opens, the rear chamber loses pressure rapidly, the diaphragm moves backward, compressed air is ejected through the valve output port, and the electromagnetic pulse valve is in the "open" state. state.

The pulse electric signal disappears, the armature of the electromagnetic pulse valve is reset, the vent hole of the rear air chamber is closed, the pressure of the rear air chamber rises to make the diaphragm close to the valve outlet, and the electromagnetic pulse valve is in the "closed" state again.

This machine is a high-performance shot blasting cleaning equipment conveyed by rollers. During the cleaning process, the speed-regulating motor drives the conveying roller to send the workpiece into the blasting area of the cleaning room. Each surface of the workpiece is subjected to eight blasts from different directions of the spatial structure. The impact and friction of the dense and powerful projectiles of the shot blasting device assembly, the scale and dirt on it quickly fall off, and the steel surface obtains a bright surface with a certain roughness. .

During the cleaning process, the scattered pellet dust mixture is collected in the lower casing of the elevator through the chamber body feeding screw conveyor, and then reaches the separator through the elevator and conveyor, and the pellet dust waterfall is generated by the separator, and the dust is blown by the tuyere to remove the dust. The separated clean projectiles fall into the separator hopper, and are thrown out by the shot blaster through the projectile conveying system.

The air dust from the separator and cleaning room is driven by the fan, and through the air duct piping system, the filter cartridge dust collector is dust-removing, and the efficiency can reach 99.9%. The purified air is discharged into the atmosphere, and the dust particles are captured and collected.

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 (8)

1. A separator for a through-type shot blasting cleaning machine, characterized in that: it comprises a cleaning chamber, a shot blasting device, a conveying system, an elevator, a separator, a screw conveyor, a pill pipeline and a dust removal system; The cleaning room is composed of main and auxiliary cleaning rooms. It adopts a large chamber structure. The upper part of the chamber is box-shaped and the lower part is cone-shaped. The cleaning operation is carried out in a sealed chamber. Composed of chamber body, rubber curtain and shot blasting chamber guard; The shot blaster is distributed in the up and down, front and rear directions of the cleaning room, and is composed of a plurality of shot blaster equipment, and the shot blaster equipment is composed of impeller, blade, directional sleeve, and introduction pipe; The conveying system is composed of a roller table and a frequency conversion speed regulating motor; The hoist adopts a flat belt drive hanging bucket type, and the shell is welded to form, which is used to lift the pellet dust mixture of the screw conveyor to the top of the machine, and is composed of upper and lower transmissions, a cylinder, a belt, and a hopper; The separator includes a shell, a trommel installed in the shell, a separation box, and a driving device; the shell is provided with a feeding chute for receiving the pellet mixture, and the chute communicates with the trommel through a spiral separation device; , and outside are provided with inner helical pieces and outer helical pieces respectively. The driving device can drive the trommel to rotate, and the side of the trommel away from the feeding trough is provided with slag discharge; There is a separation port, and the inside of the separation box is equipped with a material distribution funnel, a first separation channel, and a second separation channel. For the separation port, the first separation channel and the second separation channel are located below the outlet of the distribution funnel, which are far away from the air inlet relative to the distribution funnel, and the first separation channel and the second separation channel extend out of the separation box respectively and form the first leakage pill mouth and the second leaking pill mouth, the first separation channel is provided with a first filter plate near the outlet of the material distribution funnel, and the second separation channel is provided with a second filter plate near the outlet of the material distribution funnel; The screw conveyor is arranged at the bottom of the cleaning room, collects the mixture of pellets and dust, aggregates them and sends them to the elevator, and then sends them to the separator through the elevator, and the separator is transported to the cleaning room through the pill delivery pipeline; The dust removal system is composed of a dust removal pipeline, a dust collector, a fan, and an air duct. 2. A separator for a through-type shot blasting cleaning machine according to claim 1, characterized in that: the shot blaster includes 6-8 shot blaster equipment, and the shot blaster equipment adopts double disc linear blades Efficient shot blaster. 3. The separator for a through-type shot blasting cleaning machine according to claim 1, characterized in that: the cleaning chamber is a multi-chamber assembly, the front and rear are sealed chambers, and multi-layer rubber curtains are installed inside to shield In order to prevent projectiles from flying out, there is a certain negative pressure in the room to prevent dust from escaping. 4. A separator for a through-type shot blasting cleaning machine according to claim 1, characterized in that: the outer casing of the roller table is provided with a high-chrome wear-resistant sheath and a limit ring. 5 . The separator for a pass-through shot blasting machine according to claim 1 , wherein the screw conveyor includes a horizontal screw conveyor and a longitudinal screw conveyor. 6 . 6. The separator for a through-type shot blasting machine according to claim 1, characterized in that: each brake tube of said pill delivery pipeline is provided with a flashboard, which cuts off the projectiles from the separator respectively, so as to facilitate Repair their respective shot blasters. 7. The separator for a through-type shot blasting cleaning machine according to claim 1, characterized in that: the outlet of the distribution funnel is provided with an adjusting plate for adjusting the flow rate. 8 . The separator for a pass-through shot blasting machine according to claim 1 , wherein the first filter plate and the second filter plate are both inclined toward the air inlet. 8 .