CN107935349B - Extruder with thickness-adjustable strip-shaped sludge - Google Patents
Extruder with thickness-adjustable strip-shaped sludge Download PDFInfo
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- CN107935349B CN107935349B CN201711261815.5A CN201711261815A CN107935349B CN 107935349 B CN107935349 B CN 107935349B CN 201711261815 A CN201711261815 A CN 201711261815A CN 107935349 B CN107935349 B CN 107935349B
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- extrusion
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- sludge
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/062—Press plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an extruder with adjustable thickness of strip-shaped sludge, which comprises a support frame, an extrusion driving device and a discharge pipe adjusting device, wherein the support frame is provided with a support frame; a rectangular groove-shaped adjusting groove is formed on the lower end surface of the supporting frame; the discharge pipe adjusting device comprises a pair of discharge racks which are arranged in bilateral symmetry; the pair of discharging racks are arranged in a left-right sliding mode and synchronously close to or far away from each other at equal intervals; the discharging frame consists of a sealing plate horizontally arranged at the upper part and a plurality of discharging plates arranged in the front-back direction at the lower part; the closing plate is abutted against the upper side wall of the adjusting groove; a plurality of upward-penetrating discharging pipelines which are uniformly distributed from front to back are formed on the lower end surface of the discharging plate; the diameter of the discharging pipeline of the discharging frame on the left side is sequentially increased from left to right; the diameter of the discharge pipeline of the discharge frame on the right side is sequentially increased from right to left. The invention has high extrusion efficiency by alternately extruding the two sides, and the thickness of the strip-shaped sludge can be adjusted, thereby facilitating the subsequent transmission of the sludge with different components and the improvement of the drying efficiency.
Description
Technical Field
The invention relates to the field of sludge drying, in particular to an extruder with adjustable thickness of strip-shaped sludge.
Background
Sludge disposal is now becoming more difficult and expensive because of the rising fuel and transportation costs. To prevent the diffusion of methane and carbon dioxide, and at the same time not to shift the pollution burden to the offspring in the long run, the countries of the european union have no longer allowed the direct landfill of dewatered sludge. For the United states and China, the disposal of sludge by direct landfill will be gradually abandoned in the future.
The sludge can be incinerated, and the residual ash is inorganic substances and can be subjected to landfill treatment. But many nutrients are lost at this time. From analysis of global phosphorus resource storage, it is known that the available phosphorus resource as fertilizer is limited. These ashes, rich in phosphorus content, are generally not directly usable as agricultural fertilizers, because they contain various heavy metals. Although the prior art has a plurality of methods for recovering and extracting phosphorus from cinder, the generated phosphorus is very expensive and has no commercial value. These ashes produced by sludge incineration can only be developed and recovered in specialized landfill sites temporarily, after the phosphorus price rises in the future.
The dewatered sludge can be directly incinerated, but a large amount of heat energy is consumed in the incineration process because of the need to evaporate water. Furthermore, the dewatered sludge often needs to be transported to the incineration site (e.g. large coal power plants) from a long distance, and expensive fuels must be additionally consumed.
The sludge treatment method which is commonly adopted originally is to recycle the sludge, namely the sludge is directly used as the agricultural fertilizer. In some european countries, such as the netherlands and nordic countries, the allowable contaminant levels set are so low that it is virtually impossible for these municipal sludges to be used in agriculture. Even if the sludge is agriculturally acceptable, the disposal route will become increasingly difficult in the future because of the increasing sludge transport distances and costs. In the united states, the situation is somewhat different, and as long as sludge disinfection can reach grade a, it becomes available as a fertilizer.
Regardless of whether the sludge is recycled or incinerated for disposal, the moisture content of dewatered sludge is typically in the range of 75-85%, and it becomes economically insignificant if the moisture is transported over long distances. If the dewatered sludge is previously dried, for example from 25% DS to 90% DS, the weight of the sludge is reduced to 28%. The dried sludge has high heat value, is similar to lignite, has neutral carbon dioxide, and can be used as a renewable fuel for cogeneration.
In this background, the number of european sludge drying treatment apparatuses has been increasing year by year. In recent years, sludge drying treatment apparatuses have also been constructed in the united states and china. The transportation cost can be reduced after the sludge is dried, and the dried sludge is easy and simple to burn in a coal power plant or a cement kiln.
The existing sludge drying treatment device mainly comprises a wet stock bin, a screw pump, a sludge extruder, a drying host machine, an annular air fan, a chemical deodorization tower, a biological filter and the like; the sludge extruder is a common device, and extrudes sludge into strips to facilitate subsequent drying; however, the existing sludge extruder is not different from a common extruder, all the sludge is extruded at the same time, and the forming effect of the final sludge is generally accumulated on a conveyor belt, so that gaps among the sludge are limited and are not uniformly distributed, the subsequent contact area with hot air is affected, and the drying effect is affected finally.
In view of the disadvantages of the above solutions, there is a need to provide a new solution to solve this problem.
Disclosure of Invention
The invention aims to provide an extruder with adjustable thickness of strip-shaped sludge, aiming at the defects of the prior art, and the extruder comprises a support frame, an extrusion driving device and a discharge pipe adjusting device; a rectangular groove-shaped adjusting groove is formed on the lower end surface of the supporting frame; a pair of rectangular extruding grooves which are bilaterally symmetrical are formed on the upper side wall of the adjusting groove; the extrusion driving device comprises a pair of extrusion plates; the extrusion plate is arranged in the extrusion groove in a lifting manner; a rectangular frame-shaped pre-storage trough is formed on the side wall of the lower part of the extrusion trough; a rectangular funnel-shaped feeding hole is formed in the upper end face of the supporting frame; a shunt pipeline is formed at the lower end of the feed inlet; the lower end of the shunt pipeline is formed into a herringbone shunt part; the left and right outlets at the lower part of the flow dividing part are respectively communicated with the pre-storage trough at the corresponding side; the discharge pipe adjusting device comprises a pair of discharge racks which are arranged in bilateral symmetry; the pair of discharging racks are arranged in the adjusting groove in a left-right sliding manner and synchronously and equidistantly close to or far away from the adjusting groove; the discharging frame consists of a sealing plate horizontally arranged at the upper part and a plurality of discharging plates arranged in the front-back direction at the lower part; the closing plate is abutted against the upper side wall of the adjusting groove; a plurality of upward-penetrating discharging pipelines which are uniformly distributed from front to back are formed on the lower end surface of the discharging plate; the diameter of the discharging pipeline of the discharging frame on the left side is sequentially increased from left to right; the diameter of the discharge pipeline of the discharge frame on the right side is sequentially increased from right to left.
Preferably, the extrusion driving device comprises an extrusion cylinder; the extrusion cylinder is fixed above the extrusion groove and is arranged downwards; a piston rod of the extrusion cylinder penetrates through the upper side wall of the extrusion groove; the extrusion plate is fixed at the lower end of a piston rod of the extrusion cylinder; the size of the horizontal cross section of the pressing plate is the same as that of the pressing groove.
Preferably, the lower end of the extrusion plate is formed with a rectangular funnel shape; the shape of the lower end of the pressing groove is the same as the shape of the lower end of the pressing plate.
Preferably, when the pressing plate is located at the lowermost end, the upper end surface of the pressing plate is higher than the upper side wall of the preliminary storage tank.
Preferably, a pair of left-right symmetric upward penetrating exhaust grooves is provided on the upper side wall of the extrusion groove.
Preferably, the discharge pipe adjusting device further comprises a double-head motor and a pair of driving threaded rods arranged in the left and right horizontal directions; the double-head motor is horizontally arranged at the left and right sides in the direction and is fixed between the front side wall and the rear side wall of the adjusting groove; one ends of the pair of driving threaded rods close to each other are fixed on output shafts on two sides of the double-head motor; one ends of the pair of driving threaded rods, which are far away from each other, are pivoted on the side walls of the corresponding sides of the adjusting grooves; the left driving threaded rod penetrates through the left discharging plate and the left discharging plate is in threaded connection with the left driving threaded rod; the right side drive threaded rod penetrates through the right side discharge plate and the right side discharge plate is screwed on the right side drive threaded rod.
The invention has the beneficial effects that: the extrusion efficiency is high through the alternate extrusion of the two sides, the thickness of the strip-shaped sludge is adjustable, and the subsequent transmission of the sludge with different components and the improvement of the drying efficiency are facilitated.
Drawings
Fig. 1 is a schematic structural view of a cross section of the present invention.
In the figure, 10, the support; 100. a feed inlet; 101. a shunt line; 102. extruding a groove; 103. a pre-storage trough; 104. An exhaust groove; 105. an adjustment groove; 20. an extrusion drive device; 21. an extrusion cylinder; 22. a pressing plate; 30. a discharge pipe adjusting device; 31. a double-headed motor; 32. driving the threaded rod; 33. a discharging frame; 331. a closing plate; 332. a discharge plate; 333. and a discharge pipeline.
Detailed Description
As shown in figure 1, the extruder with adjustable thickness of strip-shaped sludge comprises a support frame 10, an extrusion driving device 20 and a discharge pipe adjusting device 30; a rectangular groove-shaped adjusting groove 105 is formed on the lower end face of the support frame 10; a pair of rectangular extruding grooves 102 which are symmetrical left and right are formed on the upper side wall of the adjusting groove 105; the pressing drive device 20 includes a pair of pressing plates 22; the extrusion plate 22 is arranged in the extrusion groove 102 in an up-and-down manner; a rectangular frame-shaped pre-storage groove 103 is formed on the lower side wall of the extrusion groove 102; a rectangular funnel-shaped feeding hole 100 is formed in the upper end face of the support frame 10; a shunt pipeline 101 is formed at the lower end of the feeding hole; the lower end of the shunt pipeline 101 is formed into a herringbone shunt part; the left and right outlets at the lower part of the flow dividing part are respectively communicated with the pre-storage trough 103 at the corresponding side; the discharge pipe adjusting device 30 comprises a pair of discharge racks 33 which are arranged in bilateral symmetry; the discharging frames 33 are arranged in the adjusting groove 105 in a left-right sliding mode and synchronously and equidistantly close to or far away from the adjusting groove; the discharging frame 33 is composed of a closing plate 331 horizontally arranged at the upper part and a plurality of discharging plates 332 arranged in the front-back direction at the lower part; the closing plate 331 abuts against the upper side wall of the regulating groove 105; a plurality of upward-penetrating discharging pipelines 333 which are uniformly distributed from front to back are formed on the lower end surface of the discharging plate 332; the diameters of the discharging pipelines 333 of the left discharging frame 33 are increased from left to right; the diameters of the discharge pipes 333 of the right discharge frame 33 increase from right to left.
As shown in fig. 1, the pressing drive means 20 includes a pressing cylinder 21; the extrusion cylinder 21 is fixed above the extrusion groove 102 and is arranged in a downward direction; the piston rod of the extrusion cylinder 21 passes through the upper side wall of the extrusion groove 102; the extrusion plate 22 is fixed at the lower end of the piston rod of the extrusion cylinder 21; the size of the horizontal cross section of the pressing plate 22 is the same as that of the pressing groove 102.
As shown in fig. 1, the lower end of the pressing plate 22 is formed with a rectangular funnel shape; the shape of the lower end of the pressing groove 102 is the same as the shape of the lower end of the pressing plate 22.
As shown in fig. 1, when the pressing plate 22 is at the lowermost end, the upper end surface of the pressing plate 22 is higher than the upper side wall of the pre-storage tank 103.
As shown in fig. 1, a pair of left-right symmetric upward penetrating exhaust grooves 104 are provided on the upper side wall of the pressing groove 102.
As shown in FIG. 1, the tapping pipe adjusting device 30 further comprises a double-headed motor 31 and a pair of driving threaded rods 32 arranged in the left-right horizontal direction; the double-head motor 31 is horizontally arranged at the left and right sides in the direction and is fixed between the front side wall and the rear side wall of the adjusting groove 105; one ends of the pair of driving threaded rods 32 close to each other are fixed on output shafts on two sides of the double-head motor 31; the ends of the pair of driving threaded rods 32 far away are pivoted on the side walls of the corresponding sides of the adjusting grooves 105; the left driving threaded rod 32 penetrates through the left discharging plate 332, and the left discharging plate 332 is screwed on the left driving threaded rod 32; the right drive threaded rod 32 passes through the right discharge plate 332 and the right discharge plate 332 is threaded onto the right drive threaded rod 32.
The working principle of the extruder with adjustable thickness of the strip-shaped sludge is as follows:
an initial state; the pair of pressing plates 22 are staggered, that is, when the left pressing plate 22 is positioned on the uppermost end surface, the right pressing plate 22 is positioned at the lowermost end; or when the right-side pressing plate 22 is positioned on the uppermost end surface, the left-side pressing plate 22 is positioned at the lowermost end;
taking the case where the left compression plate 22 is located at the uppermost end surface and the right compression plate 22 is located at the lowermost end surface in the initial state: at the moment, the feed inlet 100, the shunt pipeline 101, the left extrusion groove 102 and the pre-storage grooves 103 on two sides are filled with sludge, then the left extrusion plate 22 descends, the right extrusion plate 22 ascends, so that the sludge in the left extrusion groove 102 is formed into strip-shaped extrusion through the discharge pipeline 333 under the action of the extrusion plate 22, the lower part of the right extrusion groove 102 is emptied out along with the ascending of the extrusion plate 22 and then enters, and the strip-shaped sludge is extruded left and right sequentially through the working principle; and conveyed to the next process by the conveying device.
The thickness of the strip-shaped sludge is adjusted by only starting the double-head motor 31 to drive the pair of driving threaded rods 32 to rotate, and the pair of driving threaded rods 32 respectively drive the discharging frames 33 to synchronously approach or separate from each other at equal intervals, so that the discharging pipelines 333 below the pair of extrusion grooves 102 are of the same diameter, and the sealing plate 331 is always sealed as the outlet at the lower end of the extrusion groove 102.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.
Claims (5)
1. The utility model provides a strip mud thickness adjustable extruder which characterized in that: comprises a support frame (10), an extrusion driving device (20) and a discharge pipe adjusting device (30); a rectangular groove-shaped adjusting groove (105) is formed on the lower end face of the support frame (10); a pair of rectangular extruding grooves (102) which are symmetrical left and right are formed on the upper side wall of the adjusting groove (105); the pressing drive device (20) includes a pair of pressing plates (22); the extrusion plate (22) is arranged in the extrusion groove (102) in a lifting way; a rectangular frame-shaped pre-storage groove (103) is formed on the side wall of the lower part of the extrusion groove (102); a rectangular funnel-shaped feed inlet (100) is formed on the upper end surface of the support frame (10); a shunt pipeline (101) is formed at the lower end of the feed inlet; the lower end of the shunt pipeline (101) is formed into a herringbone shunt part; the left and right outlets at the lower part of the flow dividing part are respectively communicated with the pre-storage trough (103) at the corresponding side; the discharge pipe adjusting device (30) comprises a pair of discharge racks (33) which are arranged in bilateral symmetry; a pair of discharging racks (33) are arranged in the adjusting groove (105) in a left-right sliding manner and synchronously and equidistantly approach or depart from each other; the discharging frame (33) is composed of a closing plate (331) horizontally arranged at the upper part and a plurality of discharging plates (332) arranged in the front-back direction at the lower part; the closing plate (331) is abutted against the upper side wall of the adjusting groove (105); a plurality of upward penetrating discharging pipelines (333) which are uniformly distributed from front to back are formed on the lower end surface of the discharging plate (332); the diameters of the discharging pipelines (333) of the left discharging frame (33) are sequentially increased from left to right; the diameters of the discharging pipelines (333) of the discharging frame (33) on the right side are sequentially increased from right to left;
the discharge pipe adjusting device (30) also comprises a double-head motor (31) and a pair of driving threaded rods (32) arranged in the left-right horizontal direction; the double-head motor (31) is horizontally arranged at the left and right sides in the direction and is fixed between the front side wall and the rear side wall of the adjusting groove (105); one end of the pair of driving threaded rods (32) close to each other is fixed on output shafts on two sides of the double-head motor (31); one end of the pair of driving threaded rods (32) far away is pivoted on the side wall of the corresponding side of the adjusting groove (105); the left driving threaded rod (32) penetrates through the left discharging plate (332) and the left discharging plate (332) is screwed on the left driving threaded rod (32); the right driving threaded rod (32) penetrates through the right discharging plate (332) and the right discharging plate (332) is screwed on the right driving threaded rod (32);
the extrusion efficiency is high through the alternate extrusion of the two sides, the thickness of the strip-shaped sludge is adjustable, and the subsequent transmission of the sludge with different components and the improvement of the drying efficiency are facilitated.
2. The extruder with the thickness adjustable for the strip-shaped sludge as claimed in claim 1, is characterized in that: the extrusion driving device (20) comprises an extrusion cylinder (21); the extrusion cylinder (21) is fixed above the extrusion groove (102) and is arranged downwards; a piston rod of the extrusion cylinder (21) passes through the upper side wall of the extrusion groove (102); the extrusion plate (22) is fixed at the lower end of a piston rod of the extrusion cylinder (21); the size of the horizontal cross section of the pressing plate (22) is the same as that of the pressing groove (102).
3. The extruder with the thickness adjustable for the strip-shaped sludge as claimed in claim 1 or 2, which is characterized in that: the lower end of the extrusion plate (22) is formed with a rectangular funnel shape; the shape of the lower end of the pressing groove (102) is the same as the shape of the lower end of the pressing plate (22).
4. The extruder with the thickness adjustable for the strip-shaped sludge as claimed in claim 1, is characterized in that: when the extrusion plate (22) is at the lowest end, the upper end surface of the extrusion plate (22) is higher than the upper side wall of the pre-storage tank (103).
5. The extruder with the thickness adjustable for the strip-shaped sludge as claimed in claim 1, is characterized in that: a pair of bilaterally symmetrical upward penetrating exhaust grooves (104) are formed in the upper side wall of the extrusion groove (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261815.5A CN107935349B (en) | 2017-12-04 | 2017-12-04 | Extruder with thickness-adjustable strip-shaped sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261815.5A CN107935349B (en) | 2017-12-04 | 2017-12-04 | Extruder with thickness-adjustable strip-shaped sludge |
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| Publication Number | Publication Date |
|---|---|
| CN107935349A CN107935349A (en) | 2018-04-20 |
| CN107935349B true CN107935349B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711261815.5A Active CN107935349B (en) | 2017-12-04 | 2017-12-04 | Extruder with thickness-adjustable strip-shaped sludge |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117532941B (en) * | 2024-01-10 | 2024-03-22 | 湖南清源华建环境科技有限公司 | Strip extruder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09215998A (en) * | 1996-02-09 | 1997-08-19 | Sumiyoshi Heavy Ind Co Ltd | Dehydrated sludge supply apparatus |
| CN105058839A (en) * | 2015-09-24 | 2015-11-18 | 陈卡丹 | Agricultural fertilizer rod extrusion forming device |
| CN205203984U (en) * | 2015-11-03 | 2016-05-04 | 泰州龙瑞金属制品有限公司 | Rod iron closing device |
| CN105645720A (en) * | 2016-02-29 | 2016-06-08 | 普利资环境科技（苏州）有限公司 | Extruder for belt type drying of sludge |
| CN205818511U (en) * | 2016-06-20 | 2016-12-21 | 深圳市绚图新材科技有限公司 | Air pressure extruder |
| CN206565278U (en) * | 2016-12-30 | 2017-10-20 | 重庆市潼南区豪迈粉丝厂 | Vermicelli machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6375447B1 (en) * | 1998-09-29 | 2002-04-23 | Cq Inc. | Apparatus for dewatering and pelletizing particulate fuel |
| CN105645719B (en) * | 2016-02-29 | 2018-10-09 | 普利资环境科技（苏州）有限公司 | Structure improved draw ring on a kind of sludge bar shaped extruder |
-
2017
- 2017-12-04 CN CN201711261815.5A patent/CN107935349B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09215998A (en) * | 1996-02-09 | 1997-08-19 | Sumiyoshi Heavy Ind Co Ltd | Dehydrated sludge supply apparatus |
| CN105058839A (en) * | 2015-09-24 | 2015-11-18 | 陈卡丹 | Agricultural fertilizer rod extrusion forming device |
| CN205203984U (en) * | 2015-11-03 | 2016-05-04 | 泰州龙瑞金属制品有限公司 | Rod iron closing device |
| CN105645720A (en) * | 2016-02-29 | 2016-06-08 | 普利资环境科技（苏州）有限公司 | Extruder for belt type drying of sludge |
| CN205818511U (en) * | 2016-06-20 | 2016-12-21 | 深圳市绚图新材科技有限公司 | Air pressure extruder |
| CN206565278U (en) * | 2016-12-30 | 2017-10-20 | 重庆市潼南区豪迈粉丝厂 | Vermicelli machine |
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| CN107935349A (en) | 2018-04-20 |
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Effective date of registration: 20201020 Address after: Room 309, building 6, No. 23, Chunjiang Road, Jiyang street, Zhuji City, Shaoxing City, Zhejiang Province Applicant after: ZHUJI LIANGJIA ENVIRONMENTAL PROTECTION TECHNOLOGY CONSULTING Co.,Ltd. Address before: 523000 Guangdong province Dongguan Songshan Lake high tech Industrial Development Zone Technology Park building 11, floor 2, 201D Applicant before: DONGGUAN TIANHE ELECTROMECHANICAL DEVELOPMENT Co.,Ltd. |
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Denomination of invention: An extruder with adjustable thickness of strip sludge Effective date of registration: 20211203 Granted publication date: 20201103 Pledgee: Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Jiyang science and technology sub branch Pledgor: ZHUJI LIANGJIA ENVIRONMENTAL PROTECTION TECHNOLOGY CONSULTING CO.,LTD. Registration number: Y2021980013811 |
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Date of cancellation: 20230214 Granted publication date: 20201103 Pledgee: Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Jiyang science and technology sub branch Pledgor: ZHUJI LIANGJIA ENVIRONMENTAL PROTECTION TECHNOLOGY CONSULTING CO.,LTD. Registration number: Y2021980013811 |