CN211412328U

CN211412328U - Novel desander

Info

Publication number: CN211412328U
Application number: CN201921916839.4U
Authority: CN
Inventors: 慕峰; 吴立俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-09-04
Anticipated expiration: 2029-11-08

Abstract

A novel desander comprises a tank body, two groups of flow baffle plates and two high-pressure water nozzles, a slag extracting screw machine and a slag scraping machine, wherein the two groups of flow baffle plates and the two high-pressure water nozzles are arranged in the tank body. The utility model takes water as a medium, relies on density difference and assists high-pressure water to wash, which is beneficial to the scattering and separation of light organic matters and large-specific gravity inorganic matters in the kitchen waste mixed material; simultaneously, the angle setting and the grading setting of the flow baffle increase collision friction and break up sediment, and are favorable for improving the separation effect of the kitchen waste mixed material. The separated light organic matters and large-specific gravity inorganic matters are finally removed out of the tank body continuously and efficiently through a slag scraper and a slag extraction screw machine respectively. The utility model discloses can realize the high-efficient separation of light and heavy misce bene among the kitchen garbage, the internal portion of jar is not equipped with any drive disk assembly simultaneously, is favorable to reducing equipment trouble and maintenance cost.

Description

Novel desander

Technical Field

The utility model belongs to the technical field of kitchen garbage preliminary treatment, specifically be a novel desander that relates to a light organic matter and the separation of large proportion inorganic matter behind the kitchen garbage screening.

Background

With the rapid development and urbanization of economy, the production amount of kitchen waste is increased year by year, and the pollution problem caused by the kitchen waste is increasingly serious. The kitchen waste has the characteristics of large water content, high organic matter content, complex composition and the like. The kitchen waste material comprises organic substances such as rice, flour, grease, meat, bones and the like which can be utilized, and also comprises inorganic substances such as paper towels, plastics, glass, ceramics, metals, gravels and the like.

The main process of the current kitchen waste treatment mostly adopts pretreatment and anaerobic fermentation. Wherein the pretreatment part comprises: material receiving, impurity removing, oil extracting, crushing and the like. The impurity removal part can separate large-size impurities (larger than 50 mm), medium-size impurities (2-50 mm) and water-slurry mixtures (smaller than 2 mm) in the solid substances through secondary screening. Wherein, the medium-sized impurities are divided into light organic matters (such as vegetable leaves, rice flour, fishbone, plastics, paper towels and the like) and large-specific gravity inorganic matters (such as glass, ceramics, metal, gravel, bone, shells and the like). If the inorganic substances with large specific gravity cannot be effectively removed, the subsequent equipment is abraded, the service life is shortened, and the maintenance cost is increased. Meanwhile, inorganic matters with large specific gravity enter an anaerobic system, and after the inorganic matters accumulate day by day, the effective volume of the anaerobic tank can be reduced, so that adverse effects are brought.

Most of the existing sand removing devices adopt that a paddle is arranged in a device main body for stirring, impurities with large specific gravity are settled at the conical bottom under the action of rotational flow and gravity, and then are conveyed and discharged outside through spiral conveying, and refer to patents CN205096219U, CN106734050A, CN107803279A and CN 106390541B. The design of the main body of the sand remover of the patent is similar, and the defect is that the main body is lack of effective means for collecting and removing light organic matters and is easy to be remained in the tank body. In addition, due to the adoption of the paddle for stirring, not only is certain energy consumption caused, but also the service life of the latter is influenced by the frequent friction between the inorganic substances with large specific gravity and the paddle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide one kind with big proportion organic matters such as gravel, bone, metal, glass to and light organic matters such as vegetable leaf, rice flour carry out the device of effective separation.

In order to achieve the above purpose, the utility model adopts the following scheme: a novel desander comprises a desanding tank body, two groups of flow baffle plates and two high-pressure water nozzles, a slag extracting screw machine and a slag scraping machine, wherein the two groups of flow baffle plates and the two high-pressure water nozzles are arranged in the tank body.

Further, the desanding tank body is cylindrical; the lower part of the tank body is provided with a heavy slag bin, the side wall of the lower part of the tank body is provided with a feed inlet, and the upper part of the tank body is provided with a discharge outlet.

Furthermore, the flow baffle plates are arranged in the tank body in two groups to play roles in diversion and sedimentation; the flow baffles belonging to the same group are parallel to each other; the angle between the first group of flow baffles and the direction of the feed water flowing along the lower side wall of the tank body is 110 degrees; the angle between the second group of flow baffles and the direction of the feed water flowing along the lower side wall of the tank body is 55 degrees; the straight line of the bottom ends of the two groups of flow baffle plates is parallel to the tangential direction of the lower side wall of the tank body.

Furthermore, the slag extracting screw machine is arranged on one side of the lower part of the tank body and plays a role in conveying. The slag inlet end of the slag extracting screw machine is connected with a heavy slag bin in the tank body; the slag discharging end extends out of the tank body and is provided with a water leaching tank. The draining tank is provided with a water passing sieve pore.

Furthermore, the high-pressure water jet head is arranged on the inner wall of the tank body in two positions, one position is parallel to the tangential direction of the lower side wall of the tank body, and the other position is perpendicular to the tangential direction of the lower side wall of the tank body, so that the effect of stirring, rubbing and washing is achieved.

Further, the residue scraper is arranged at the top of the tank body and used for removing light organic matters.

The utility model has the advantages that: separating light organic matters and large-specific-gravity inorganic matters by using water as a medium and depending on density difference; the washing with high-pressure water is assisted, so that the hydraulic stirring of materials in the tank body can be realized, and the scattering and separation of light and heavy mixed materials are facilitated; through the angle arrangement and the grading arrangement of the flow baffle, the collision friction is increased, the sediment is scattered, and the separation effect of light and heavy mixed materials is favorably improved; the floating and partially suspended light organic matters can be continuously and efficiently removed out of the tank body through the action of the slag scraper. In addition, any transmission part is not arranged in the tank body, so that equipment failure and maintenance cost are reduced.

Drawings

FIG. 1 is a schematic view of a desander. Wherein: 1 tank body, 1-1 feed inlet, 1-2 discharge outlets, 1-3 heavy slag bin, 1-4 slag scraper guide rails, 2 supports, 3 first group of flow baffles, 4 second group of flow baffles, 5 slag extraction screw machines, 5-1 slag inlet end, 5-2 slag outlet end, 6 water leaching tank, 7 water passing sieve holes, 8 high-pressure water spray nozzles and 9 slag scraper.

Detailed Description

The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited to these specific embodiments. It will be recognized by those skilled in the art that the present invention encompasses all alternatives, modifications, and equivalents as may be included within the scope of the claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The present invention is further explained below with reference to fig. 1: the utility model provides a novel sand removing tank, includes a jar body 1, jar body 1 is the cylinder, is certain angle with horizontal ground to fix on horizontal ground through support 2. A feed inlet 1-1 is formed in the side wall of the lower part of the tank body 1; a discharge port 1-2 is arranged at the upper part of the tank body 1; the bottom of the tank body 1 is provided with a heavy slag bin 1-3. A plurality of flow baffles are arranged in the tank body 1 and divided into two groups, namely a first group of flow baffles 3 and a second group of flow baffles 4; the flow baffles belonging to the same group are parallel to each other; the angle between the first group of flow baffles 3 and the direction of the feed water flowing along the lower side wall of the tank body 1 is 110 degrees; the angle between the second group of flow baffles 4 and the direction of the feed water flowing along the lower side wall of the tank body 1 is 55 degrees; the straight lines of the bottom ends of the two groups of flow baffle plates are parallel to the tangential direction of the lower side wall of the tank body 1.

The slag extracting screw machine 5 is arranged on one side of the lower part of the tank body, a slag inlet end 5-1 of the slag extracting screw machine is connected with a heavy slag bin 1-3, a slag outlet end 5-2 extends out of the tank body 1, and a water leaching tank 6 is arranged. The draining tank 6 is provided with a water passing sieve pore 7.

The high-pressure water jet head 8 is arranged on the inner wall of the tank body 1 in two positions, one position is parallel to the tangent direction of the lower side wall of the tank body 1, and the other position is perpendicular to the tangent direction of the lower side wall of the tank body 1.

And the slag scraper 9 is positioned at the top of the tank body 1 and is arranged on the slag scraper guide rails 1-4 on the inner wall of the tank body 1.

The specific working process is as follows: the kitchen waste mixed material flows in from a feed inlet 1-1 at the lower part of the tank body 1, and the mixed material contains light organic matters, large-specific-gravity inorganic matters and water. Because the first group of flow baffle plates 3 are arranged, the mixed material meets the first flow baffle plate in the first group of flow baffle plates 3 and collides with the first flow baffle plate in the process of rising along with water, and part of the mixed material is scattered. The inorganic matters with large specific gravity in the mixed materials are downward settled along the flow baffle under the obstruction and collision of the flow baffle; meanwhile, the kitchen waste material part (mixture of organic matters and inorganic matters) with the density smaller than that of water in the mixed material continuously floats upwards along the flow baffle and enters a water flow area at the top of the flow baffle. Because the first group of flow baffle plates 3 are provided with multiple stages, the floating light kitchen waste materials undergo multiple times of collision and scattering in the stage-by-stage liquid level when being pushed forwards. The heavy kitchen waste materials scattered step by step sink along a flow baffle when being blocked by the subsequent flow baffle and finally gather in a heavy slag bin 1-3 area; meanwhile, the light substances scattered step by step can bypass the upper flow baffle plate and continue to be pushed to the lower flow baffle plate. The light materials passing through the first set of baffle plates 3 will pass through the second set of baffle plates 4. The materials can be continuously conveyed to the discharge port 1-2 along the water flow direction after overflowing the second group of flow baffle plates 4; the materials which can not overflow descend along the second group of flow baffle plates 4 and sink to the heavy slag storage bins 1-3 along the inclined plane of the side wall of the tank body. Through the first group of flow baffle 3 and the second group of flow baffle 4, water and materials with density less than that of the water are finally lifted and conveyed to the discharge port 1-2. A slag scraper 9 is arranged in front of the discharge port 1-2, the slag scraper 9 scrapes the light materials to the discharge port 1-2, and the light materials are discharged continuously, so that the light materials are prevented from accumulating at the front end of the discharge port 1-2.

The high-pressure water spray head 8 is arranged in two parts; the water outlet of the high-pressure water injection head 8 can wash the mixed materials adhered to the inner wall of the tank body 1 and can also stir the mixed materials deposited at the bottom. Through hydraulic flushing and mutual friction among materials, the kitchen waste mixed materials which are bonded together can be partially scattered. And (3) floating the light materials in the scattered mixed materials with water, and sinking the heavy materials to a heavy slag bin 1-3.

The slag extracting screw machine 5 is arranged on one side of the lower part of the tank body, a slag inlet end 5-1 of the slag extracting screw machine is connected with a heavy slag bin 1-3, a slag outlet end 5-2 extends out of the tank body 1, and a water leaching tank 6 is arranged. The heavy materials accumulated in the heavy slag storage bin 1-3 are conveyed out of the tank body 1 by the lifting action of the slag-extracting screw machine 5. The draining tank 6 is provided with a water passing sieve pore 7, so that the water content of the heavy materials can be further reduced. Before being transported out of the tank body 1, the heavy materials which are temporarily stopped at the slag discharging end 5-2 contain part of moisture and can enter the water leaching tank 6 through the water passing sieve holes 7. And under the action of gravity, the drained water finally flows back to the tank body 1 for recycling.

Claims

1. The utility model provides a novel desander which characterized in that: comprises a sand removing tank body, two groups of flow baffle plates arranged in the tank body, two high-pressure water nozzles, a slag extracting screw machine and a slag scraping machine; the flow baffle plates are arranged in the tank body in two groups to play roles of diversion and sedimentation, large-proportion inorganic matters in the mixed material are downward settled along the flow baffle plates under the obstruction and collision of the flow baffle plates, and meanwhile, kitchen waste material parts with density smaller than that of water in the mixed material continuously float upwards along the flow baffle plates; the high-pressure water spray head is arranged on the inner wall of the tank body in two positions, one position is parallel to the tangential direction of the lower side wall of the tank body, the other position is vertical to the tangential direction of the lower side wall of the tank body, so that the high-pressure water spray head can play a role in washing the mixed materials adhered to the inner wall of the tank body and can also play a role in stirring the mixed materials deposited at the bottom, wherein the light materials float upwards along with water, and the heavy materials sink; the slag extracting screw machine is arranged on one side of the lower part of the tank body, and heavy materials are conveyed out of the tank body under the lifting action of the slag extracting screw machine; the residue scraper is arranged at the top of the tank body, and can continuously and efficiently remove floating and partially suspended light organic matters out of the tank body.

2. The new grit catcher as claimed in claim 1, wherein: the sand removal tank body is cylindrical; the lower part of the tank body is provided with a heavy slag bin, the side wall of the lower part of the tank body is provided with a feed inlet, and the upper part of the tank body is provided with a discharge outlet.

3. The new grit catcher as claimed in claim 1, wherein: the flow baffles are arranged in the tank body in two groups; the flow baffles belonging to the same group are parallel to each other; the angle between the first group of flow baffles and the direction of the feed water flowing along the lower side wall of the tank body is 110 degrees; the angle between the second group of flow baffles and the direction of the feed water flowing along the lower side wall of the tank body is 55 degrees; the straight line of the bottom ends of the two groups of flow baffle plates is parallel to the tangential direction of the lower side wall of the tank body.

4. The new grit catcher as claimed in claim 1, wherein: the slag inlet end of the slag extracting screw machine is connected with a heavy slag bin in the tank body; the slag discharging end extends out of the tank body and is provided with a water draining groove; the draining tank is provided with a water passing sieve pore.