CN107737487A - A kind of separating and filtering system for suction-type excavator body feed tank - Google Patents

Abstract

The invention proposes a separation and filtration system for the material box of a suction excavator, which comprises a first partition, a second partition, a third partition and a The gravity settling chamber, coarse separation chamber, water separation chamber, fine filter chamber and noise reduction exhaust chamber are formed by four partitions. The gravity settling chamber is equipped with a material inlet, and the noise reduction exhaust chamber is equipped with an exhaust port. The first The height of the partition is lower than that of the gravity settling chamber. The invention can effectively realize the separation and filtration of solid, gas and liquid, and is convenient for classification and treatment of materials.

Description

A separation and filtration system for material bins of suction excavators

technical field

The invention belongs to the technical field of excavators, and in particular relates to a separation and filtration system for a material box of a suction excavator.

Background technique

The maintenance of urban water supply pipelines, power supply lines, etc. often requires precise excavation work. General-purpose excavation equipment is relatively heavy and difficult to meet this requirement. The traditional manual excavation method is inefficient, so the suction excavator is used as a Flexible and efficient excavation equipment came into being. The suction excavator realizes the excavation of soil, sand and gravel and other materials by means of suction. Depending on the working environment, sometimes it is necessary to use a water knife to break the soil, so that the materials sucked by the excavator contain a large amount of water, and even in special cases The lower excavator will be directly used to pump sewage, which causes the material sucked by the excavator may contain solid, liquid and gas components at the same time. During normal work, the solid and liquid components in the material need to be deposited into the collection box, and the gas Therefore, it is necessary to develop a separation and filtration system suitable for suction excavators to maintain the normal and efficient operation of excavators.

Contents of the invention

The technical problem to be solved by the present invention is to provide a separation and filtration system for the material box of a suction excavator, which can effectively separate the solid, liquid and gas components in the mixed material.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a separation and filtration system for the material box of a suction excavator, which is characterized in that it includes first ones arranged at intervals along the material flow direction on the bottom plate of the material box. The gravity settling chamber, the rough separation chamber, the water separation chamber, the fine filter chamber and the noise reduction exhaust chamber separated by the partition, the second partition, the third partition and the fourth partition, the gravity settling chamber is provided with The material inlet, the noise reduction exhaust chamber is provided with an exhaust port, and the height of the first partition is lower than that of the gravity settling chamber.

According to the above scheme, the gravity settling chamber is divided into an upper solid bin and a lower liquid bin by setting a filter plate, and a first baffle plate extending downward is fixed on the top plate of the upper solid bin, and the length of the first baffle plate is Less than the height of the upper solid bin.

According to the above solution, a second baffle plate extending downward is fixed on the top plate of the rough separation chamber, and the length of the second baffle plate is less than the height of the rough separation chamber.

According to the above scheme, several cyclone separators are arranged in the water separation chamber, and the inlets of the cyclone separators are respectively communicated with the inlets of the water separation chamber on the second partition through pipelines, and the top of the third partition is provided with water At the outlet of the separation chamber, the bottom of the cyclone separator communicates with the liquid collection tank arranged on the bottom plate of the water separation chamber through a drain pipe.

According to the above scheme, the top of the fine filter chamber is provided with a downwardly extending material guide plate, and several bag dust collectors are arranged side by side between the material guide plate and the fourth partition. Width, the outlet of the bag filter is connected with the opening on the fourth partition, and the bottom of the bag filter is equipped with a vibrating screen.

According to the above scheme, the noise-reducing exhaust chamber is provided with an air-inducing plate, and the air-inducing plate and the fourth partition form an air-inducing channel, and an air inlet is provided under the air-inducing plate to connect with the fan inlet, and the noise-reducing exhaust A muffler is provided in the air chamber near the exhaust port.

According to the above scheme, several baffles are evenly spaced on the end faces of the first and second baffles on the side where the material flows upward, and the baffles are connected to the first and second baffles through an angle adjustment device. .

According to the above solution, the angle adjusting device includes hinges, struts and hooks, the spoiler is hinged with the first and second partitions through hinges, and the end surfaces on both sides of the spoiler are respectively connected to the One end of the strut is hinged, and the other end of the strut is configured with the hook on the first and second partitions.

According to the above scheme, the bag filter is divided into two groups, each group is six, and the vibrating screen includes two Japanese-shaped frames arranged side by side, and the four corners of the two Japanese-shaped The plate is connected with the material guide plate, the six nodes of the two Japanese-shaped frames are connected with the bottoms of the six baghouses, and the two Japanese-shaped frames are equipped with vibrators.

According to the above solution, a discharge valve is provided on the second partition plate at a position corresponding to the outlet of the water separation chamber.

The beneficial effects of the present invention are: to provide a separation and filtration system for the material box of the suction excavator, in which the material inhaled by the suction excavator passes through the gravity settling chamber, the rough separation chamber, the water separation chamber, the fine filter The solid-liquid-gas separation is carried out in the chamber and the noise reduction exhaust chamber. The solid-liquid materials are stored in the material box for subsequent processing, and the gas materials are discharged after being treated by the silencer.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a top view of a water separation chamber and a fine filter chamber according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of the opening of the discharge valve according to an embodiment of the present invention.

Among them: 1-material box, 2-first partition, 3-second partition, 4-third partition, 5-fourth partition, 6-gravity settling chamber, 7-coarse separation chamber, 8-water Separation chamber, 9-fine filter chamber, 10-noise reduction exhaust chamber, 11-material inlet, 12-exhaust port, 13-filter plate, 14-first baffle, 15-cyclone separator, 16-liquid collection Box, 17-feed plate, 18-bag dust collector, 19-vibrating screen, 20-wind plate, 21-muffler, 22-baffle plate, 23-rib frame, 24-spring, 25-discharge valve , 26-the second baffle plate, 27-fan.

detailed description

In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Fig. 1-Fig. 3, a kind of separation filter system that is used for the material box of suction excavator comprises the first dividing plate 2 that is arranged on the material box 1 bottom plate at intervals along the direction of material flow, the second dividing plate The gravity settling chamber 6, coarse separation chamber 7, water separation chamber 8, fine filter chamber 9 and noise reduction exhaust chamber 10 formed by plate 3, the third partition 4 and the fourth partition 5 are separated, and the gravity settling chamber is provided with The material inlet 11, the noise reduction exhaust chamber is provided with an exhaust port 12, and the height of the first partition is lower than that of the gravity settling chamber.

The gravity settling chamber is divided into an upper solid bin and a lower liquid bin by setting a filter plate 13. Filter holes are distributed on the filter plate to allow only liquid or smaller particles to pass through. The top plate of the upper solid bin is fixed with a first baffle extending downward Plate 14, the length of the first baffle is less than the height of the upper solid bin, the setting of the first baffle changes the flow direction of the material, prolongs the time for the solid-liquid separation of the material in the gravity settling chamber, making the separation more thorough, and the lower liquid bin The bottom surface of the tank is at a certain angle with the horizontal plane to facilitate the smooth discharge of sewage.

A second baffle plate 26 extending downward is fixed on the top plate of the coarse separation chamber, the length of the second baffle plate is less than the height of the coarse separation chamber, and the first baffle plate, the second baffle plate and the second baffle plate are arranged at intervals to form a cascade type. Channel, the cross-section of the channel gradually increases in the direction of flow, so that the flow velocity is reduced for deposition.

Several cyclone separators 15 are arranged in the water separation chamber, and the inlets of the cyclone separators communicate with the inlets of the water separation chambers on the second dividing plate respectively through pipelines, the top of the third dividing plate is provided with the outlet of the water separating chamber, and the bottom of the cyclone separator It communicates with the liquid collecting tank 16 arranged on the bottom plate of the water separation chamber through the drain pipe. Under normal working conditions, the discharge pipe and the liquid collection tank are in a connected state. When the material box is turned sideways to discharge materials, the liquid discharge pipe and the liquid collection tank are in a non-connected state to prevent the liquid from flowing back in the liquid collection tank. The state switching can It is realized by the shut-off valve provided on the discharge pipe.

The top of the fine filter chamber is provided with a downwardly extending material guide plate 17, and several bag dust collectors 18 are arranged side by side between the material guide plate and the fourth partition. When the material is turned sideways to discharge the material, there will be a certain gap to smoothly discharge the dust filtered by the fine filter chamber. The outlet of the bag filter is connected with the opening on the fourth partition. The bottom of the bag filter is equipped with a vibrating screen 19. The self-cleaning of the filter bag is realized by vibration. The vibrating screen consists of two sun-shaped frames 23 arranged side by side. The four corners of the two sun-shaped frames are respectively connected to the fourth partition and the material guide plate through springs 24. The six nodes of the two sun-shaped frames are connected to the six baghouses. The bottom of the bag is connected, and vibrators are installed on the two sun-shaped frames. When there is a lot of dust on the filter bag, the dust will be shaken off into the fine filter chamber by the vibration of the vibrator.

The noise reduction exhaust chamber is provided with an air induction plate 20, the air induction plate and the fourth partition form an air induction channel, and an air inlet is arranged below the air induction plate to connect with the fan 27 inlet, and the noise reduction exhaust chamber is close to the exhaust port The position of the muffler 21 is provided, and the clean gas flowing out of the fine filter chamber is inhaled by the blower and is finally discharged outside the car after the noise reduction treatment through the muffler, so far completing a filtering process.

Several baffles 22 are evenly spaced on the end faces of the first and second baffles where materials flow upward, and the baffles are connected to the first and second baffles through an angle adjustment device. The angle adjustment device includes a hinge, a strut and a hook. The spoiler is hinged with the first and second partitions through a hinge. One end is configured with the hooks arranged on the first and second partitions. The material from the gravity settling chamber is guided by the multi-stage channel. When the fluid direction changes sharply, due to the effect of inertia, the material with larger particles can be effectively settled. The baffle plates on the first and second partitions are inclined downward. The strut is configured with the hook under the baffle, and the baffle inclined downward can effectively block some solid and liquid materials; after working for a period of time, when there is a lot of dust under the baffle, the baffle can be swung so that Let the accumulated dust fall into the coarse separation chamber; when the material box is turned sideways to discharge the material, the inclination direction of the baffle can be adjusted so that the baffle is set upwards, and the strut is arranged with the hook above the baffle. So that the material below can be discharged smoothly.

A discharge valve 25 is provided on the second partition corresponding to the outlet of the water separation chamber. The discharge valve is opened when the inhaled material is relatively dry and closed when the material has a high water content. When the water content of the inhaled material is large, the discharge valve is closed, and the material enters the cyclone separator and becomes a rotating fluid under the action of the internal swirl plate. Due to the centrifugal force, most of the liquid and larger solids in the material The material and the smaller particles absorbed by the liquid are thrown to the inner wall and flow into the liquid collection tank; when the inhaled material is relatively dry, the discharge valve is opened, and the pressure drop is greatly reduced, so most of the material directly enters the fine filter chamber from the coarse separation chamber . The main function of the cyclone separator is to dry the fluid to avoid clogging when the over-humid fluid directly enters the fine filter chamber.

The above are only preferred embodiments of the present invention, and of course cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still belong to the protection scope of the present invention.

Claims (10)

1. A separation and filtration system for the material box of a suction excavator is characterized in that it comprises a first dividing plate, a second dividing plate, and a third dividing plate arranged on the material box bottom plate at intervals along the material flow direction. The gravity settling chamber, the coarse separation chamber, the water separation chamber, the fine filter chamber and the noise reduction exhaust chamber are formed by separating the gravity settling chamber and the fourth partition. The gravity settling chamber is provided with a material inlet, and the noise reduction exhaust chamber is set There is an exhaust port, and the height of the first partition is lower than that of the gravity settling chamber. 2. a kind of separation filter system that is used for suction type excavator material box according to claim 1, is characterized in that, in the described gravity settling chamber, be divided into upper solid storehouse and lower liquid storehouse by arranging filter plate, described A first baffle extending downward is fixed on the top plate of the upper solid bin, and the length of the first baffle is shorter than the height of the upper solid bin. 3. A separation and filtration system for a material box of a suction excavator according to claim 2, wherein a second baffle plate extending downward is fixed on the top plate of the rough separation chamber, and the first The length of the second baffle is less than the height of the coarse separation chamber. 4. a kind of separation filter system that is used for suction type excavator material box according to claim 3, is characterized in that, several cyclone separators are arranged in the described water separation chamber, and the inlet of cyclone separator passes through pipeline and said water separation chamber respectively. The inlet of the water separation chamber on the second partition is connected, the top of the third partition is provided with the outlet of the water separation chamber, and the bottom of the cyclone separator is connected to the liquid collection tank on the bottom plate of the water separation chamber through the drain pipe. connected. 5. A kind of separation filter system for suction excavator material box according to claim 4, it is characterized in that, the top of described fine filter chamber is provided with the material guide plate that extends downwards, and described material guide plate and the fourth Several bag dust collectors are arranged side by side between the partitions. The length of several bag dust collectors is smaller than the width of the fine filter chamber. The outlet of the bag dust collector is connected with the opening on the fourth partition. screen. 6. A separation and filtration system for a material box of a suction excavator according to claim 5, wherein an air-inducing plate is arranged in the noise-reducing exhaust chamber, and the air-inducing plate and the first air-inducing plate are Four partitions form an air-introduction channel, an air inlet is provided under the air-introduction plate to be connected with the fan inlet, and a muffler is provided in the noise reduction exhaust chamber near the air outlet. 7. A separation and filtration system for a material box of a suction excavator according to claim 1, wherein the end surfaces on one side where materials flow upward on the first partition and the second partition are evenly spaced. There are several baffles, and the baffles are connected with the first and second partitions through an angle adjustment device. 8. A separation and filtration system for a material box of a suction excavator according to claim 7, wherein the angle adjustment device comprises a hinge, a strut and a hook, and the baffle is connected to the The first and second baffles are hinged through hinges, the end surfaces on both sides of the spoiler are respectively hinged with one end of the strut, and the other end of the strut is connected with the first and second baffles. Configure the hooks described above. 9. A separation and filtration system for a material box of a suction excavator according to claim 5, wherein the bag filter is divided into two groups, each group is six, and the vibrating screen includes two Sun-shaped frames arranged side by side, the four corners of the two sun-shaped frames are respectively connected to the fourth partition and the material guide plate through springs, and the six nodes of the two sun-shaped frames are connected to the bottom of the six baghouses. A vibrator is arranged on a sun-shaped frame. 10. A separation and filtration system for a material box of a suction excavator according to claim 4, wherein a discharge filter is provided at a position corresponding to the outlet of the water separation chamber on the second partition valve.