CN107555742B - Sludge wet impurity removing device and sludge treatment equipment - Google Patents
Sludge wet impurity removing device and sludge treatment equipment Download PDFInfo
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- CN107555742B CN107555742B CN201711022498.1A CN201711022498A CN107555742B CN 107555742 B CN107555742 B CN 107555742B CN 201711022498 A CN201711022498 A CN 201711022498A CN 107555742 B CN107555742 B CN 107555742B
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Abstract
The invention provides a sludge wet impurity removing device and sludge treatment equipment, which belong to the field of environmental protection. The invention is convenient for large-scale fine pretreatment of sludge, can control the particle size of sludge particles in the sludge, solves the problem of sludge pretreatment of a sludge treatment process requiring fine impurity removal, improves the separation efficiency, obtains sludge slurry meeting the requirement of the particle size of the sludge particles, prevents equipment from being blocked, and improves the effective treatment rate of the sludge as much as possible, and is mainly applicable to anaerobic digestion treatment of the sludge, wet oxidation treatment of the sludge, supercritical oxidation treatment of the sludge, atomization incineration treatment of the sludge and the like.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a wet sludge impurity removal device and sludge treatment equipment.
Background
In the environmental protection and chemical industry, the sludge from the production section of chemical plants and the dehydrated sludge from sewage treatment plants have larger yield, belong to solid waste, and part of sludge from chemical plants also belongs to dangerous waste, and need to be comprehensively treated and disposed so as not to cause harm to the ecological environment. Some regional centralized sludge treatment devices can collect sludge of various factories, the water content of the sludge is generally 60% -90%, and the sludge inevitably contains some sundries such as sand, fiber cloth, bamboo wood, plastic, rubber products, metal products and the like. These impurities are mixed in the sludge without pretreatment, which is easy to cause equipment damage, pipeline and nozzle blockage problems of subsequent treatment systems such as anaerobic digestion, wet oxidation, atomization incineration and the like. Therefore, there is an urgent need to develop a device for removing impurities effectively, so as to ensure the operation stability and efficiency of the treatment and reduce the operation cost.
Disclosure of Invention
The invention aims to provide a wet sludge impurity removing device, which aims to solve the technical problems that impurities in sludge in the prior art cause damage to subsequent treatment system equipment or pipeline blockage.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a mud wet process edulcoration device, including mud storehouse, slurrying jar, sand stone groove, shale shaker, finished product mud jar, wet ball mill and delivery pump, mud storehouse intercommunication inlet tube, the export in mud storehouse links to each other with the slurrying jar import, be equipped with the mixer in the slurrying jar, the heavy debris export of slurrying jar lower extreme sets up in sand stone groove top, the mud export of slurrying jar upper portion side links to each other with the shale shaker import, the export setting of shale shaker below is in finished product mud jar top, the oversize export and the wet ball mill import intercommunication of shale shaker, the wet ball mill below is equipped with the collection tank, the import of shale shaker is passed through delivery pump and pipeline intercommunication to the collection tank.
Further, a grid is arranged at the mud outlet on the side surface of the upper part of the pulping tank.
Further, a lock hopper is arranged at the heavy sundries outlet at the lower end of the pulping tank, and valves are arranged at the upper inlet and the lower inlet of the lock hopper.
Further, a plurality of screw conveyors are arranged at the bottom of the sludge bin, and the outlets of the screw conveyors are connected with the inlets of the pulping tanks.
Further, the motors of the screw conveyors are servo motors or stepping motors, and the number of the screw conveyors is 2-4.
Further, the sludge bin is made of carbon steel and internally provided with an anti-corrosion layer, and the spiral material of the spiral conveyor is stainless steel or carbon steel.
Further, the pulping tank is made of stainless steel, and the screen mesh of the vibrating screen is made of polyurethane.
Further, the number of the screen meshes of the vibrating screen is more than 20 meshes, and the vibrating screen is a linear screen.
Further, the spacing of the grids is 5-15mm.
The invention also provides sludge treatment equipment comprising the sludge wet impurity removal device with the structure.
The sludge wet impurity removing device provided by the invention has the beneficial effects that: compared with the prior art, the method is convenient for large-scale fine pretreatment of the sludge, can control the particle size of the sludge particles in the sludge, has continuous process flow, is easy to realize automatic operation, has less engineering investment and low operation cost. The invention solves the sludge pretreatment problem of the sludge treatment process requiring fine impurity removal, improves the separation efficiency, obtains the sludge slurry meeting the requirement of the particle size of the sludge particles, prevents equipment from being blocked, and improves the effective treatment rate of the sludge as much as possible, and is mainly applicable to sludge anaerobic digestion treatment, sludge wet oxidation treatment, sludge supercritical oxidation treatment, sludge atomization incineration treatment and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a wet sludge impurity removal device according to an embodiment of the present invention;
wherein, each reference sign in the figure:
1-sludge bin, 2-pulping tank, 3-valve, 4-lock hopper, 5-sand stone tank, 6-stirrer, 7-grille, 8-vibrating screen, 9-finished product slurry tank, 10-wet ball mill, 11-conveying pump, 12-collecting tank and 13-screw conveyor.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the wet sludge impurity removal device provided by the invention will now be described. The wet sludge impurity removing device comprises a sludge bin 1, a pulping tank 2, a sand and stone groove 5, a vibrating screen 8, a finished product slurry tank 9, a wet ball mill 10 and a conveying pump 11, wherein the sludge bin 1 is communicated with a water inlet pipe, an outlet of the sludge bin 1 is connected with an inlet of the pulping tank 2, a stirrer 6 is arranged in the pulping tank 2, a heavy impurity outlet at the lower end of the pulping tank 2 is arranged above the sand and stone groove 5, a slurry outlet on the side surface of the upper part of the pulping tank 2 is connected with an inlet of the vibrating screen 8, an outlet below the vibrating screen 8 is arranged above the finished product slurry tank 9, a oversize outlet of the vibrating screen 8 is communicated with an inlet of the wet ball mill 10, and a collecting tank 12 is arranged below the wet ball mill 10 and is communicated with an inlet of the vibrating screen 8 through the conveying pump 11 and the pipeline. The arrows in the figure represent the material run.
Compared with the prior art, the sludge wet impurity removing device provided by the invention has the advantages that the sludge and the water are fully mixed through the pulping tank with the stirrer, so that the residence time of the sludge in the pulping tank is not less than 30 minutes, the dry sludge is fully absorbed, impurities adhered to the sludge are separated from the sludge, heavy impurities such as sand stone, metal and the like are settled at the bottom of the pulping tank, and light impurities such as bamboo, rubber and plastic and the like float on the surface of the sludge. Heavy impurities are discharged from a heavy impurities outlet at the bottom of the pulping tank to the sand and stone tank for outward transportation, so that the separation of sludge and heavy impurities is realized; the slurry outlet on the side surface of the upper part of the pulping tank can discharge slurry into a vibrating screen for further separation, and the undersize of the vibrating screen enters a finished product slurry tank for temporary storage for the subsequent treatment process; the oversize products are sludge balls and fine impurities, and enter a wet ball mill through an upper oversize product outlet to be ground into slurry, and then are conveyed into a vibrating screen by a conveying pump to be circularly separated.
Wherein, the separation particle size of the vibrating screen is determined according to the subsequent process requirement, and if the particle size requirement of the particles is smaller than 1mm, the mesh number of the vibrating screen is preferably 20 meshes or more. The vibrating screen is preferably a linear screen, and the screen mesh material is preferably polyurethane.
Further, as a specific embodiment of the wet sludge impurity removing device provided by the invention, a grid 7 is arranged at a sludge outlet on the side surface of the upper part of the pulping tank 2, discharged sludge is filtered, and the fiber cloth, plastic rubber and other outward transportation treatments are separated. And (3) primarily separating light impurities floating on the upper part of the slurry by utilizing a grid. Wherein, the grid spacing of the grids is determined according to the particle size of sundries and the deslagging mode, the grids adopt manual deslagging, and the grid spacing is preferably 10-15mm; the grids are mechanically deslagged, and the grid spacing is preferably 5-10mm.
Further, as a specific implementation mode of the sludge wet impurity removing device provided by the invention, a lock bucket 4 is arranged at a heavy impurity outlet at the lower end of the pulping tank 2, and valves 3 are arranged at upper and lower inlets and outlets of the lock bucket 4. Heavy impurities settled at the bottom of the pulping tank 2 are discharged into a lock hopper 4 for caching through an operation valve 3, so that separation of sludge and heavy impurities is realized; and after a certain amount of heavy sundries in the lock hopper are discharged into the sand stone groove 5 by opening the valve below, and then the heavy sundries are transported and disposed of in a centralized way.
Further, as a specific implementation mode of the wet sludge impurity removing device provided by the invention, the bottom of the sludge bin 1 is provided with a plurality of screw conveyors 13, and the outlet of the screw conveyors 13 is connected with the inlet of the pulping tank 2. Wherein, the motor of the screw conveyor 13 is a servo motor or a stepping motor, so as to realize the forward rotation or the reverse rotation of the screw; the number of screw conveyors 13 is 2-4. The sludge is continuously conveyed into the pulping tank through the screw conveyor at the bottom of the sludge bin 1, so that the screw conveyor at the bottom of the sludge bin can prevent the sludge from bridging and arching in the sludge bin, and the sludge conveying efficiency is improved; the spiral shaft of each spiral conveyor realizes forward rotation and reverse rotation so as to facilitate the pre-stirring and mixing of sludge and water and prevent the sludge from winding; screw conveyors may employ either shafted or shaftless screws. Carbon steel is preferably selected as the sludge bin, and an anti-corrosion layer is arranged on the inner surface of the sludge bin to play a role in corrosion resistance; the spiral material is preferably carbon steel or stainless steel according to the sludge property.
Further, as a specific implementation mode of the wet sludge impurity removing device provided by the invention, the pulping tank 2 and the finished product mud tank are made of stainless steel, so that the service life is prolonged.
The invention also provides sludge treatment equipment comprising the sludge wet impurity removal device with the structure. All sludge treatment equipment comprising the wet sludge impurity removing device with the structure are within the protection scope of the invention.
In conclusion, the method is convenient for large-scale fine pretreatment of the sludge, can control the particle size of the sludge particles in the sludge, has continuous process flow, is easy to realize automatic operation, and has low engineering investment and low operation cost. Is especially suitable for main sludge wet treatment processes, such as wet oxidation, supercritical oxidation, atomized incineration and the like. The vibrating screen has high separation efficiency, can customize the separation particle size, and has the advantages of low investment and high efficiency compared with other screen machines such as a centrifugal machine and a drum screen; the screen material of the vibrating screen is small mud balls and fine impurities, the water content is high, the grain size of the mud particles is easily ground to be micron-sized by adopting wet ball milling, the mud treatment rate is improved, and the out-of-commission treatment amount is reduced; meanwhile, the discharged material of the wet ball mill is returned to the vibrating screen through the conveying pump, so that the circulating separation is realized.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. Sludge wet process edulcoration device, its characterized in that: the device comprises a sludge bin, a pulping tank, a sand stone groove, a vibrating screen, a finished product slurry tank, a wet ball mill and a conveying pump, wherein the sludge bin is communicated with a water inlet pipe, an outlet of the sludge bin is connected with an inlet of the pulping tank, a stirrer is arranged in the pulping tank, a heavy sundry outlet at the lower end of the pulping tank is arranged above the sand stone groove, a slurry outlet on the side surface of the upper part of the pulping tank is connected with an inlet of the vibrating screen, an outlet below the vibrating screen is arranged above the finished product slurry tank, a oversize outlet of the vibrating screen is communicated with an inlet of the wet ball mill, and a collecting tank is arranged below the wet ball mill and is communicated with an inlet of the vibrating screen through the conveying pump and a pipeline;
fully mixing sludge and water through the stirrer, so that the residence time of the sludge in the pulping tank is not less than 30 minutes, drying the sludge, fully absorbing water, separating impurities and sludge adhered to the sludge, settling sand stone and metal heavy impurities at the bottom of the pulping tank, floating bamboo wood and rubber plastic light impurities on the surface of the sludge, discharging the heavy impurities from a heavy impurities outlet at the bottom of the pulping tank to the sand stone tank for outward transportation, and separating the sludge and the heavy impurities; the slurry outlet on the side surface of the upper part of the pulping tank can discharge slurry into the vibrating screen for further separation, and the undersize of the vibrating screen enters the finished product slurry tank for temporary storage for the subsequent treatment process; the oversize materials are sludge balls and fine impurities, enter the wet ball mill through an oversize material outlet above the vibrating screen to be ground into slurry, and are conveyed into the vibrating screen by the conveying pump to be circularly separated;
a grid is arranged at a mud outlet on the side surface of the upper part of the pulping tank;
the heavy sundries outlet at the lower end of the pulping tank is provided with a lock hopper, and the upper and lower inlets and outlets of the lock hopper are provided with valves.
2. The wet sludge removal device as claimed in claim 1, wherein: the bottom of the sludge bin is provided with a plurality of screw conveyors, and the outlet of each screw conveyor is connected with the inlet of the pulping tank.
3. The wet sludge removal device as claimed in claim 2, wherein: the motors of the screw conveyors are servo motors or stepping motors, and the number of the screw conveyors is 2-4.
4. The wet sludge removal device as claimed in claim 2, wherein: the sludge bin is made of carbon steel, an anti-corrosion layer is arranged in the sludge bin, and the spiral material of the spiral conveyor is stainless steel or carbon steel.
5. The wet sludge removal device as claimed in claim 1, wherein: the pulping tank is made of stainless steel, and the screen mesh of the vibrating screen is made of polyurethane.
6. The wet sludge removal device as claimed in claim 1, wherein: the screen mesh number of the vibrating screen is more than 20 meshes, and the vibrating screen is a linear screen.
7. The wet sludge removal device as claimed in claim 1, wherein: the spacing of the grids is 5-15mm.
8. Sludge treatment equipment comprising the wet sludge removal apparatus as claimed in any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711022498.1A CN107555742B (en) | 2017-10-27 | 2017-10-27 | Sludge wet impurity removing device and sludge treatment equipment |
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| CN201711022498.1A CN107555742B (en) | 2017-10-27 | 2017-10-27 | Sludge wet impurity removing device and sludge treatment equipment |
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| CN107555742A CN107555742A (en) | 2018-01-09 |
| CN107555742B true CN107555742B (en) | 2023-08-15 |
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| CN112808429A (en) * | 2021-01-18 | 2021-05-18 | 衡阳县伟恒陶瓷原料有限公司 | Albite processing method |
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| JP2003090195A (en) * | 2001-07-12 | 2003-03-28 | Hanshin Kensetsu Co Ltd | Sludge processing equipment in slurry-thickening system type or high density slurry type pipe jacking method |
| CN101100364A (en) * | 2006-07-05 | 2008-01-09 | 桂殿宝 | Method for producing ceramic granule from oil sludge sand |
| CN203613079U (en) * | 2013-12-10 | 2014-05-28 | 郭琳 | Integrated device for removing sundries and grit in sludge and slurrying |
| CN105000783A (en) * | 2015-07-31 | 2015-10-28 | 三川德青科技有限公司 | Pipe duct sludge reduction and innocent treatment technology and device |
| CN204851122U (en) * | 2015-07-21 | 2015-12-09 | 任丘市绿邦环保科技有限公司 | Mud does not fall to ground novelly along with boring processing system |
| CN206142947U (en) * | 2016-09-08 | 2017-05-03 | 上海华垒石材有限公司 | Sewage treatment system of building stones factory |
| CN206337129U (en) * | 2016-12-28 | 2017-07-18 | 安徽佳明环保科技股份有限公司 | A kind of sludge slurry processing equipment |
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- 2017-10-27 CN CN201711022498.1A patent/CN107555742B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090195A (en) * | 2001-07-12 | 2003-03-28 | Hanshin Kensetsu Co Ltd | Sludge processing equipment in slurry-thickening system type or high density slurry type pipe jacking method |
| CN101100364A (en) * | 2006-07-05 | 2008-01-09 | 桂殿宝 | Method for producing ceramic granule from oil sludge sand |
| CN203613079U (en) * | 2013-12-10 | 2014-05-28 | 郭琳 | Integrated device for removing sundries and grit in sludge and slurrying |
| CN204851122U (en) * | 2015-07-21 | 2015-12-09 | 任丘市绿邦环保科技有限公司 | Mud does not fall to ground novelly along with boring processing system |
| CN105000783A (en) * | 2015-07-31 | 2015-10-28 | 三川德青科技有限公司 | Pipe duct sludge reduction and innocent treatment technology and device |
| CN206142947U (en) * | 2016-09-08 | 2017-05-03 | 上海华垒石材有限公司 | Sewage treatment system of building stones factory |
| CN206337129U (en) * | 2016-12-28 | 2017-07-18 | 安徽佳明环保科技股份有限公司 | A kind of sludge slurry processing equipment |
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