CN214861563U - Water-containing solid waste filter-pressing dehydration test device - Google Patents
Water-containing solid waste filter-pressing dehydration test device Download PDFInfo
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- CN214861563U CN214861563U CN202121019030.9U CN202121019030U CN214861563U CN 214861563 U CN214861563 U CN 214861563U CN 202121019030 U CN202121019030 U CN 202121019030U CN 214861563 U CN214861563 U CN 214861563U
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Abstract
The utility model discloses a water-containing solid waste filter-pressing dehydration test device, including the loading portion that is used for exerting pressure to the sample, the water collection portion that is used for placing the flourishing appearance portion of sample and receiving dehydration liquid, loading portion is equipped with the elastic membrane that can freely expand and exerts the pressure source of pressure to the elastic membrane, the inflation is exerted pressure on the sample and is used for making the sample dehydration behind the elastic membrane received pressure. The utility model discloses thereby the device pressurizes the elasticity membrane and pressurizes the sample and replace the mode of current with the piston connection pressure bar and exert pressure, because the elasticity of elasticity membrane, with pressure conduction to sample on, can dewater the sample, avoided the problem that leakproofness and frictional resistance can not hold concurrently in the current mode of exerting pressure, and whole device simple structure, the dehydration is even and operation and convenient to carry.
Description
Technical Field
The utility model relates to a filter-pressing dehydration test device especially relates to a moisture solid waste matter filter-pressing dehydration test device.
Background
For water-containing solid wastes such as dredging sludge, building slurry, water treatment sludge, mineral processing tailings, industrial sludge and the like, dehydration is generally performed to achieve the purposes of reducing the volume of the wastes, reducing the volume and improving the strength, so that the subsequent collection, storage, treatment, utilization or disposal is facilitated. The water content of the water-containing solid waste can be classified into structural water, bound water, and free water (capillary water, gravitational water) according to the occurrence form and binding potential energy in the solid. At present, a filter-pressing dehydration method is generally adopted for deep dehydration of water-containing solid waste, and a small-scale dehydration test device is required to be used for carrying out test simulation on a dehydration process in model selection of dehydration equipment, dehydration medicament research and dehydration parameter research.
There is no standard experimental method, and piston loading dehydration methods are commonly used for the simulation of press dehydration, such as patents CN201810781835.3, CN200910054559.1, CN201310292050.7, etc. The piston loading type test device has higher sealing requirement on the piston and the cylinder wall, is generally difficult to process and manufacture, and has large frictional resistance between the piston and the cylinder wall if the sealing performance is high; if the sealing performance is low, although the frictional resistance is reduced, the dehydrating liquid leaks from the piston under a large pressure. Meanwhile, the uniformity of drainage of the sample in the squeezing process is not easy to control, and uneven mud cakes can generate eccentric force on the piston, so that the piston cannot normally work in the cylinder wall. In addition, the piston loading type device is also required to be provided with a set of loading system, the whole structure is complex, the device is usually heavy, the installation and the taking out of the mud cake of the sample are complicated, and the operation and the carrying are inconvenient.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a thereby replace the leakproofness that traditional piston mode pressurization obtained high, the dehydration is even and operation and convenient to carry's hydrous solid waste filter-pressing dehydration test device.
The technical scheme is as follows: aqueous solid waste filter-pressing dehydration test device, including the loading portion that is used for exerting pressure to the sample, be used for placing the flourishing appearance portion of sample and the water-collecting part of receiving dehydration liquid, loading portion is equipped with the elastic membrane that can freely expand and exerts the pressure source of pressure to the elastic membrane, the expansion is exerted pressure on the sample and is used for making the sample dehydration after the elastic membrane receives pressure.
Preferably, the pressure source is a pneumatic or hydraulic source.
Preferably, the charging portion is provided with an exhaust valve for discharging pressure.
Preferably, the loading part is provided with a concave pressurizing bin, and the elastic membrane is arranged in the concave pressurizing bin.
Preferably, the elastic membrane is fixed in the pressurizing bin through a pressing ring and a bolt.
Preferably, the loading part, the sample containing part and the water collecting part are connected through screws which are vertically communicated, and the loading part and the sample containing part as well as the sample containing part and the water collecting part are fastened through nuts respectively.
Preferably, a gap is formed around the lower end surface of the loading part, which is in contact with the nut, and the nut between the loading part and the sample containing part is arranged in the gap.
Preferably, the upper end surfaces of the sample containing part and the water collecting part are respectively provided with a groove for placing a sample and a filtering device.
Preferably, the grooves are respectively provided with a water stop sealing ring.
Preferably, the recess of water collection portion up end is the toper water catch bowl, it is equipped with porous permeable plate to lie in filter equipment below on the toper water catch bowl, toper water catch bowl intercommunication discharge passage, the external discharge valve of discharge passage and delivery pipe.
Has the advantages that: compared with the prior art, the utility model, gain as follows and show the effect: 1. the elastic membrane is pressurized so as to pressurize the sample instead of the conventional mode of connecting a piston with a pressurizing rod, and the sample can be dehydrated by transmitting the pressure to the sample due to the elasticity of the elastic membrane, so that the problem that the tightness and the frictional resistance cannot be obtained in the conventional pressurizing mode is solved, and the whole device has the advantages of simple structure, uniform dehydration and convenient operation and carrying; 2. the pressure stabilization can be used for the research of dehydration parameters of the water-containing solid waste sample, the evaluation of dehydration effect and the like.
Drawings
Fig. 1 is a schematic view of the structure of the device of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a water-containing solid waste filter-pressing dehydration test device, which comprises a loading part 3, a sample containing part 11 and a water collecting part 16 which are arranged from top to bottom. The loading part 3, the sample containing part 11 and the water collecting part 16 are connected by a screw 17 which is penetrated through up and down, and the sample is sealed by the pressing force generated by the screw which penetrates through the upper part, the middle part and the lower part and the upper nut 2; a middle nut 8 is arranged between the sample containing part and the water collecting part to fix the sample containing part and the water collecting part so as to be convenient for sample loading.
The loading part 3 is provided with a concave pressurizing bin 4, an elastic membrane which can be freely expanded is arranged in the pressurizing bin 4, the elastic membrane is fixed in the pressurizing bin 4 by a pressing ring 6 and a fixing bolt 5, the elastic membrane of the embodiment is a plastic membrane, and the elastic membrane can also be made of other materials as long as the elastic membrane can transmit pressure outwards under the action of pressure. The exhaust valve 1 is arranged above the loading part 3, and is suitable for the situation of applying water pressure, and when the water pressure is not required to be applied, such as air pressure is applied, the exhaust valve 1 can be closed; the loading part 3 is communicated with a pressurizing pipe 19, a pressurizing valve 18 is arranged on the pressurizing pipe 19, and an external air pressure source or hydraulic source is connected to the pressurizing pipe 19, so that loading pressure can be provided for the elastic membrane 7; for example, the air pressure is supplied by connecting to an air compressor, and the water pressure is supplied by connecting to a water pressure pump. A gap 20 is formed around the lower end surface of the loading part 3, which is contacted with the middle nut 8, and the middle nut 8 is arranged in the gap 20, so that the pressing of the loading part 3, the sample containing part 11 and the water collecting part 16 is not influenced.
A sample bin 10 for placing a sample to be dehydrated is arranged above the sample containing part 11, and a first water stop sealing ring 9 is arranged in the sample bin 10.
A conical water collecting tank 15 is arranged above the water collecting part 16, a porous permeable plate 14 is arranged on the conical water collecting tank 15, filter paper or filter cloth 12 is arranged on the porous permeable plate 14 when the water collecting device is used, and a second water stopping sealing ring 13 is arranged in the conical tank; the conical water collection tank 15 is communicated with a discharge channel 23 which is externally connected with a discharge valve 21 and a discharge pipe 22.
The working process is as follows:
(1) placing filter paper 12 on the porous water-permeable plate 14 of the water collecting part, and pressing the sample containing part 11 on the water collecting part 16; the sample containing part 11 and the water collecting part 16 are pressed tightly by using the middle nut 8;
(2) placing a sample to be tested into the sample bin 10 of the sample containing part 11; placing the loading part 3 on the sample containing part 11, and simultaneously pressing the upper part, the middle part and the lower part by using the upper nut 2;
(3) connecting the pressurization pipe 19 to an air compressor; opening the pressurizing valve 18, applying air pressure to the elastic membrane to expand the elastic membrane, and transmitting the pressure to the sample to be detected by the elastic membrane to dehydrate the sample to be detected;
when water pressure is applied, the step (3) is changed to connect the pressurizing pipe 19 to the water pressurizing pump, then open the exhaust valve 1 to exhaust until water is discharged above the exhaust valve 1, at the moment, the exhaust is finished, close the exhaust valve 1, and then continue to apply the water pressure until a required pressure value is reached, and the pressurization is stopped; placing the container to receive the dehydrating liquid;
(4) collecting dehydration liquid and recording time and water amount;
(5) when the experiment is finished, the pressure of the pressurizing pipe 19 is removed; closing the pressurizing valve; the upper nut 2 is opened, and the loading part 3 is taken down; opening the middle nut 8, taking down the sample containing part 11, and taking out the mud cake for measurement;
(6) the filter paper 12 is removed, and the experimental apparatus is cleaned, and the experiment is completed.
Claims (10)
1. The filter-pressing dehydration test device for the water-containing solid waste is characterized by comprising a loading part (3) for applying pressure to a sample, a sample containing part (11) for placing the sample and a water collecting part (16) for receiving dehydration liquid, wherein the loading part (3) is provided with an elastic membrane capable of freely expanding and a pressure source for applying pressure to the elastic membrane, and the elastic membrane expands after receiving the pressure and applies the pressure to the sample to dehydrate the sample.
2. The filter-press dehydration test unit of said aqueous solid waste according to claim 1 characterized in that said pressure source is a pneumatic or hydraulic pressure source.
3. A filter-press dewatering test unit according to claim 1, characterised in that the loading section (3) is provided with a vent valve (1) for venting pressure.
4. The filter-press dehydration test unit of solid waste containing water according to claim 1, characterized in that said loading part (3) is opened with a concave pressurizing bin (4), said elastic membrane being disposed in said concave pressurizing bin (4).
5. A filter-press dewatering test unit as claimed in claim 4, characterised in that the elastic membrane is secured in the pressurised bin (4) by a clamping ring (6) and bolts (5).
6. The filter-pressing dehydration test device for the hydrous solid waste according to claim 1, characterized in that the loading part (3), the sample holding part (11) and the water collecting part (16) are connected by a screw (17) which is through from top to bottom, and the loading part (3) and the sample holding part (11), and the sample holding part (11) and the water collecting part (16) are respectively fastened by nuts.
7. The filter-press dehydration test device of solid waste containing water according to claim 6, characterized in that a gap is formed around the contact of the lower end surface of said loading part (3) and the nut, and the nut between said loading part (3) and the sample holding part (11) is arranged in said gap.
8. A filter-press dehydration test device for solid waste containing water according to claim 1 characterized in that the upper end surface of said sample holding part (11) and water collecting part (16) is respectively provided with a groove for placing a sample and a filtering device.
9. A filter-press dewatering test device for solid waste with water as claimed in claim 8 wherein water stop sealing rings are provided in the grooves respectively.
10. The filter-pressing dehydration test device for solid wastes with water according to claim 8, characterized in that the groove on the upper end surface of said water collection part (16) is a conical water collection tank (15), a porous permeable plate (14) is arranged below the filtering device on said conical water collection tank (15), said conical water collection tank (15) is communicated with a discharge channel (23), said discharge channel (23) is externally connected with a discharge valve (21) and a discharge pipe (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121019030.9U CN214861563U (en) | 2021-05-13 | 2021-05-13 | Water-containing solid waste filter-pressing dehydration test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121019030.9U CN214861563U (en) | 2021-05-13 | 2021-05-13 | Water-containing solid waste filter-pressing dehydration test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214861563U true CN214861563U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121019030.9U Active CN214861563U (en) | 2021-05-13 | 2021-05-13 | Water-containing solid waste filter-pressing dehydration test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214861563U (en) |
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2021
- 2021-05-13 CN CN202121019030.9U patent/CN214861563U/en active Active
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