CN203370393U - Chemical dosing device for strengthening dehydration effect of pressurized filter by using aluminium polychlorid filter aid - Google Patents
Chemical dosing device for strengthening dehydration effect of pressurized filter by using aluminium polychlorid filter aid Download PDFInfo
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- CN203370393U CN203370393U CN201320376670.4U CN201320376670U CN203370393U CN 203370393 U CN203370393 U CN 203370393U CN 201320376670 U CN201320376670 U CN 201320376670U CN 203370393 U CN203370393 U CN 203370393U
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Abstract
The utility model relates to a chemical dosing device for strengthening the dehydration effect of a pressurized filter by using an aluminium polychlorid filter aid, which belongs to the technical field of coal slime dehydration, and aims to strengthen the dehydration effect of a pressurized filter by adding an aluminium polychlorid filter aid through using the device. The technical scheme of the utility model is as follows: through the chemical dosing device arranged at a feed inlet of a pressurized filter, an aluminium polychlorid filter aid is applied to the surface of a filtered fed material; the chemical dosing device comprises a pressurized filter feeding bucket 4, a filter aid hopper 7, a filter aid mixing barrel 8, an automatic dosing device controller 9, a coal slurry property detector 10 and a screw pump 11. According to the utility model, through the formation of a porous material or filtering medium on the surface of a filter cloth, the implementation of dehydration of coal slurry is facilitated, and compared with the existing methods for increasing the dehydration efficiency by improving the mechanical design or filter cloth meshes of a filter press, the chemical dosing device disclosed by the utility model is more economical in investment, convenient to control and more significant in effect.
Description
Technical field
The utility model belongs to the coal slime dewatering technical field, is specifically related to a kind of chemicals dosing plant with aluminium polychloride filter aid strengthening pressing filter dehydrating effect
Background technology
Pressing filter is a kind of new and effective fine coal de-watering equipment, utilizes compressed air as filtered driving force, in the filter medium both sides, forms pressure reduction, makes material form filter cake filtering on disk, and take advantage of a situation blowing and scraper of recycling unloads filter cake down to discharge bin.Due to upper and lower two sealing discharging storehouse alternations, but this equipment continuous operation, treating capacity is large, product moisture is low, and in coal preparation plant, application is comparatively extensive.
The increase of the use of large-scale fully-mechanized mining equipment and the coal mining degree of depth makes the fine fraction content in feed coal sharply increase, be less than the superfine sized coal grain of 320 purpose content and often surpass 50%, and filter cloth of pressurizing filter usually to adopt mesh be 160 purpose monofilament non-woven filter cloths, even therefore under the effect of filter cake this equipment also be difficult to reach the purpose of holding back superfine material.So, caused pressing filter pressure reduction to reduce, become the series of problems such as cake difficulty, the increase of filtrate solid content, product moisture rising, finally cause prolongation filter cycle, the reduction of coal slime treating capacity, product quality to descend, when serious, cause thin mud to gather, have to maintain at the cost of the environment carrying out continuously of coal preparation plant's production.
For further improving the working effect of pressing filter, can reduce the filter cloth mesh size, but production practices prove, reduce mesh size and will extend filter cycle greatly, and filter cake thickness descends obviously, restricted the treating capacity of coal slime.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, and a kind of chemicals dosing plant with aluminium polychloride filter aid strengthening pressing filter dehydrating effect is provided.
The utility model for the technical scheme that solves above-mentioned the deficiencies in the prior art employing is:
A kind of chemicals dosing plant with aluminium polychloride filter aid strengthening pressing filter dehydrating effect, comprise that pressing filter enters charging basket, also comprise the filter aid hopper, the filter aid mixer, the automatic medicine adding apparatus controller, character of coal slurry detector and screw pump, wherein, described filter aid hopper is connected with the filter aid mixer, the filter aid mixer enters charging basket by screw pump and pressing filter and is connected, the other end of filter aid hopper is connected with the automatic medicine adding apparatus controller by screw pump, one end and the pressing filter of character of coal slurry detector enter charging basket and are connected, the other end is connected with the automatic medicine adding apparatus controller.
A kind of chemicals dosing plant with aluminium polychloride filter aid strengthening pressing filter dehydrating effect of the present utility model, being characterized in can be according to the concentration that adds press-in material and granularmetric composition, adjust in time additive amount of medicament, guarantee that coal slurry completes the reunion of fine particle under enough pharmacy effects, thereby form loose porous filter material or filter medium by the pan feeding pump on the filter cloth surface, be beneficial to the dehydration of coal slurry, the existing Machine Design of filter press or the method that the filter cloth mesh improves dewatering efficiency improved, the utility model investment is more economical, it is convenient to control, effect is more remarkable, and can be under the prerequisite that does not change original filter press parts, increase substantially coal slime treating capacity and dewatering efficiency.And this filter aid is inorganic polymer, with low cost, raw material is extensive, also large tracts of land is for the processing of sewage, therefore the unnecessary medicament added in this link has returned to the slime water concentration pond by filtrate, by the use that mixes with flocculant, further strengthen the effect of settling of black water, thereby prepared qualified pan feeding for follow-up dehydration link, saved the reagent consumption amount of filter aid.
The accompanying drawing explanation
Fig. 1 is the related process chart of the utility model;
Fig. 2 is chemicals dosing plant structural representation of the present utility model.
The specific embodiment
Embodiment 1
As shown in Figure 1, the related technological process of the utility model is that black water is concentrated in thickener 1, thickener 1 connects downflow weir 2 and cyclic water tank 3, concentrated underflow is squeezed into and is added press-in material bucket 4 by the slag stock pump, the coal slurry added in press-in material bucket 4 is squeezed in pressing filter 5 through pump, by the press dewatering of pressing filter 5, filter cake enters discharge bin 6, and filtrate is got back in thickener 1 by pipeline.
As shown in Figure 2, a kind of chemicals dosing plant with aluminium polychloride filter aid strengthening pressing filter dehydrating effect in the present embodiment, comprise that pressing filter enters charging basket 4, also comprise filter aid hopper 7, filter aid mixer 8, automatic medicine adding apparatus controller 9, character of coal slurry detector 10 and screw pump 11, wherein, described filter aid hopper 7 is connected with filter aid mixer 8, filter aid mixer 8 enters charging basket 4 by screw pump 11 and pressing filter and is connected, the other end of filter aid hopper 7 is connected with automatic medicine adding apparatus controller 9 by screw pump 11, one end and the pressing filter of character of coal slurry detector 10 enters charging basket 4 and is connected, the other end is connected with automatic medicine adding apparatus controller 9.
After coal slurry enters pressing filter and enters charging basket 4, by 10 pairs of samples of character of coal slurry detector, gathered, analyze, analysis result input automatic medicine adding apparatus controller 9, provide corresponding chemical feeding quantity after being analyzed by the concentration to sample and granularmetric composition, chemical feeding quantity is controlled by screw pump 11, in filter aid mixer 8, with water, mix, complete the process of making up a prescription under the effect of agitating device, finally by automatic medicine adding apparatus controller 9, send instruction, provide the filter aid of corresponding dosage by screw pump 11 to adding in press-in material bucket 4, complete the interpolation work of filter aid.
Claims (1)
1. the chemicals dosing plant with aluminium polychloride filter aid strengthening pressing filter dehydrating effect, comprise that pressing filter enters charging basket (4), it is characterized in that also comprising filter aid hopper (7), filter aid mixer (8), automatic medicine adding apparatus controller (9), character of coal slurry detector (10) and screw pump (11), wherein, described filter aid hopper (7) is connected with filter aid mixer (8), filter aid mixer (8) enters charging basket (4) by screw pump (11) and pressing filter and is connected, the other end of filter aid hopper (7) is connected with automatic medicine adding apparatus controller (9) by screw pump (11), one end of character of coal slurry detector (10) enters charging basket (4) with pressing filter and is connected, the other end is connected with automatic medicine adding apparatus controller (9).
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CN201320376670.4U CN203370393U (en) | 2013-06-27 | 2013-06-27 | Chemical dosing device for strengthening dehydration effect of pressurized filter by using aluminium polychlorid filter aid |
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CN201320376670.4U CN203370393U (en) | 2013-06-27 | 2013-06-27 | Chemical dosing device for strengthening dehydration effect of pressurized filter by using aluminium polychlorid filter aid |
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CN201320376670.4U Expired - Lifetime CN203370393U (en) | 2013-06-27 | 2013-06-27 | Chemical dosing device for strengthening dehydration effect of pressurized filter by using aluminium polychlorid filter aid |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107344141A (en) * | 2017-08-02 | 2017-11-14 | 曲靖市沾益区龙鑫资源回收有限公司 | A kind of technique of coal slime extraction cleaned coal |
CN109650693A (en) * | 2018-12-25 | 2019-04-19 | 山西神悦节能技术有限责任公司 | A kind of coal slime filter aid add-on system and method |
CN111068377A (en) * | 2019-12-10 | 2020-04-28 | 浙江雅顿环境科技有限公司 | Pressurizing stack disc filter |
CN113599867A (en) * | 2021-08-25 | 2021-11-05 | 北京科技大学 | Micro-fine particle viscous material filter-pressing dehydration process detection control device and method |
-
2013
- 2013-06-27 CN CN201320376670.4U patent/CN203370393U/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107344141A (en) * | 2017-08-02 | 2017-11-14 | 曲靖市沾益区龙鑫资源回收有限公司 | A kind of technique of coal slime extraction cleaned coal |
CN107344141B (en) * | 2017-08-02 | 2019-12-13 | 曲靖市沾益区龙鑫资源回收有限公司 | Process for extracting clean coal from coal slime |
CN109650693A (en) * | 2018-12-25 | 2019-04-19 | 山西神悦节能技术有限责任公司 | A kind of coal slime filter aid add-on system and method |
CN111068377A (en) * | 2019-12-10 | 2020-04-28 | 浙江雅顿环境科技有限公司 | Pressurizing stack disc filter |
CN113599867A (en) * | 2021-08-25 | 2021-11-05 | 北京科技大学 | Micro-fine particle viscous material filter-pressing dehydration process detection control device and method |
CN113599867B (en) * | 2021-08-25 | 2022-08-12 | 北京科技大学 | Micro-fine particle viscous material filter-pressing dehydration process detection control device and method |
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