CN201539415U - Medium-consistency slurry pump system device - Google Patents

Medium-consistency slurry pump system device Download PDF

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Publication number
CN201539415U
CN201539415U CN200920238145XU CN200920238145U CN201539415U CN 201539415 U CN201539415 U CN 201539415U CN 200920238145X U CN200920238145X U CN 200920238145XU CN 200920238145 U CN200920238145 U CN 200920238145U CN 201539415 U CN201539415 U CN 201539415U
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CN
China
Prior art keywords
middle underflow
turbulent flow
flow generator
pump system
underflow pump
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Expired - Lifetime
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CN200920238145XU
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Chinese (zh)
Inventor
胡庆喜
陈中豪
刘明友
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN200920238145XU priority Critical patent/CN201539415U/en
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Publication of CN201539415U publication Critical patent/CN201539415U/en
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Abstract

The utility model provides a medium-consistency slurry pump system device, which comprises a medium-consistency stand pipe, a turbulent generator, a centrifugal medium-consistency slurry pump, a three-phase separator and a vacuum pump and a connecting pipeline thereof. The turbulent generator of the medium-consistency slurry pump system device is fixed on the bottom of the medium-consistency stand pipe by a suction flange. An outlet of the turbulent generator is connected with the suction flange of the centrifugal medium-consistency slurry pump. A support of the turbulent generator is connected with the three-phase separator by a vacuum gas exhaust piping. The three-phase separator is connected with the vacuum pump. The utility model can realize to send the medium-consistency slurry to a bleaching tower device continuously stably according to a certain flow rate and pressure in the medium-consistency paper pulp cleaning and bleaching process flow.

Description

The middle underflow pump system and device
Technical field
The utility model relates to pulp and paper industry middle concentration paper pulp cleaning and bleaching technological method---middle underflow material conveying technology, the key device middle underflow pump system and device that particularly a kind of middle underflow material is carried.
Background technique
Two main pollution sources of pulp and paper industry are the pollution of the black liquor that produces of boiling and the pollution of bleaching effluent, and wherein the harmfulness polluted of bleaching effluent is polluted much larger than black digestion liquid, and toxicity is very big.The low dense chloride CEH bleaching of tradition needs to consume a large amount of chemical product such as chlorine, alkali and hypochlorite, produces the poisonous waste water that contains AOX in a large number, and one ton of CEH bleached pulp of every according to statistics production can produce the poisonous waste water more than 100 cubes.Along with the attention of people to environmental protection, improving and increasingly stringent of environmental regulation, enterprises in pulp and paper industry has begun progressively to adopt dense cleaning and bleaching technology during element-free chlorine (ECF) bleaching and totally chlorine free (TCF) bleach, reduce the discharge capacity and the toxicity of waste water, reduce or eliminate the pollution of paper-making effluent, carry out cleaner production environment.
Middle underflow material conveying technology is realized the main process of dense cleaning and bleaching technology in ECF bleaching and the TCF bleaching, and in dense cleaning and bleaching technology compare with the conventional bleaching technology, have that environmental pollution is little, yield is high, the bleached pulp retention of whiteness is good, the chemicals consumption is few, produce series of advantages such as waste water is few and be widely adopted, and in the critical equipment of dense conveying technology be the middle underflow pump system and device.
Single Vane Medium Consistency Pump ZL95215788.8 of domestic production at present and turbulent type middle underflow pump CN88201317U transportation concentration all occur sending that slurry is unstable, pressure surge is big during greater than 10% middle underflow material, can't realize that ECF bleaching and TCF bleach in the conveying of underflow material in the dense cleaning and bleaching technical matters flow process; Utilize the positive displacement helical rotor pump carry in during the underflow material because paper pulp fiber is big with screw rod rubber bushing friction ractor, the screw rod lining be easy to damage and in making the underflow material carry and fail; Domestic introduction and external online in dense cleaning and bleaching pulping production line generally adopt middle underflow pump system of the middle underflow pump system of Suhl longevity company's band horizontal turbulence device or peace moral Ritz company with vertical quality-adjusting device, it is that its vacuum pump extract system directly is connected with pump or quality-adjusting device with valve by pipeline that there is a common shortcoming in these two kinds of middle underflow pump systems, slurry, water, vapour three-phase stream directly pass through vacuum pump, vacuum pump impeller is very fragile and degree of vacuum is descended or lost efficacy, in the influence the stable conveying of underflow material with in the safe operation of dense cleaning and bleaching pulping production line.Therefore, invent underflow materials device in the stable conveying of a kind of energy, the safe operation of dense cleaning and bleaching pulping production line is extremely important in the assurance.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, provides underflow material in the conveying of a kind of energy continous-stable, the middle underflow pump system and device of dense cleaning and bleaching pulping production line safe operation in the assurance.
Technical purpose of the present utility model is achieved through the following technical solutions: this middle underflow pump system and device, dense standpipe, turbulent flow generator, centrifugal middle underflow pump, three-phase separator, vacuum pump and connecting pipeline thereof in comprising.The bottom of dense standpipe during described turbulent flow generator is fixed on by suction flange, the outlet of turbulent flow generator is connected with the suction flange of centrifugal middle underflow pump, the bearing of turbulent flow generator is connected with the three-phase separator suction tude by the vacuum exhaust pipeline, and the three-phase separator steam outlet pipe is connected with vacuum pump.
In the above-mentioned middle underflow pump system and device, described in the main body of dense standpipe be cylindrical, and the bottom of dense standpipe is converted into miter angle along the center line of described cylinder in described.
In the above-mentioned middle underflow pump system and device, dense standpipe is made of main body and base section in described, main body is cylindrical, base section is served as reasons with a plane along the central point of described cylinder bottom surface and become the direction of miter angle that cylinder is excised the remaining and cylindrical part that links together in back with the cylinder bottom surface, the bottom notch of excision back cylinder is surrounded by the part of circular cone, the vertex of a cone of circular cone is positioned at described central spot, the circular cone bottom surface is parallel with the cylinder bottom surface, and the diameter of circular cone bottom surface is consistent with the diameter of cylinder bottom surface.The diameter of described cylinder is less than 900mm, and height is greater than 3000mm.
In the above-mentioned middle underflow pump system and device, described turbulent flow generator comprises rotor, housing, sealing, axle, belt pulley transmitting assemblies, bearing and vacuum exhaust adapter, and the rotor of turbulent flow generator is three-jaw or four paws shape rotor, and is welded with spiral vane on the pawl.
In the above-mentioned middle underflow pump system and device, the axle of described turbulent flow generator is a hollow shaft, and axle is connected by bearing with bearing, is connected with Vacuum exhaust tube on the bearing.
In the above-mentioned middle underflow pump system and device, described centrifugal middle underflow pump is the centrifugal stock pump of half-opened impeller, and the adjustment lining that cooperates with described half-opened impeller is installed on the pump case of centrifugal stock pump.
In the above-mentioned middle underflow pump system and device, described three-phase separator is airtight container, is welded by two cylindrical tubes of size, all is welded with connecting tube on two cylindrical shells of size, and the outer wall of connecting tube and cylinder body outer wall are tangent on how much.
During this middle underflow pump system and device is described dense standpipe be diameter less than 900mm, the cylinder height is greater than 3000mm, in dense standpipe the bottom along in the center line of dense standpipe be converted into miter angle, with underflow charge bridge in preventing; The rotor of described turbulent flow generator is three-jaw or four paws shape rotor, is welded with spiral vane on the pawl, so that produce strong shearing stress during high speed rotating; Described centrifugal middle underflow pump is designed to the centrifugal stock pump of half-opened impeller, has to adjust cooperating of lining and half-opened impeller the timely gap of adjustment lining and impeller when the volumetric efficiency of damage in impeller pump descends on the pump case of centrifugal stock pump.Pipeline that described three-phase separator is connected with turbulent flow generator and three-phase separator main cylinder are tangent, help the gas, liquid, solid three-phase separation.
Compared with prior art, the present invention has following advantage and effect: middle concentration paper pulp is under the strong shear action of the rotor high-speed rotation generation of turbulent flow generator, network of fibers disintegrates, middle underflow material fluidization, because centrifugal action forms low pressure in rotor center, the air in the paper pulp separates with fiber and assembles and the formation air mass to the rotor center low pressure area, under the effect of vacuum pump extract system, in time send into three-phase separator and separate gathering in the air of rotor center and low amounts of water, fiber; Removed air and fluidised in the underflow material under centrifugal middle underflow pump impeller centrifugal action, be conveyed into the medium consistency bleaching tower by the flow of technological requirement and pressure continous-stable.
Description of drawings
Fig. 1 is the structural front view of the utility model middle underflow pump system and device.
Fig. 2 is the structure plan view of this middle underflow pump of the utility model system and device.
Fig. 3 is the utility model middle underflow pump system and device turbulent flow generator structural representation.
Fig. 4 is the centrifugal middle underflow pump structural representation of model utility underflow pump system and device in this.
Fig. 5 is the three-phase separator structural front view of the utility model middle underflow pump system and device.
Fig. 6 is the three-phase separator structure plan view of the utility model middle underflow pump system and device.
Embodiment
Below in conjunction with embodiment and accompanying drawing concrete enforcement of the present utility model is described further.
Fig. 1 shows embodiment of the present utility model, by Fig. 1, shown in Figure 2, and dense standpipe 1, turbulent flow generator 2, centrifugal middle underflow pump 3, three-phase separator 4, vacuum pump 5 and system's connecting pipeline 6 during the utility model middle underflow pump system and device comprises.In dense standpipe 1 be that diameter is less than 900mm, the cylinder height is greater than 3000mm, and in described dense standpipe the bottom along in the center line of dense standpipe be converted into miter angle, in the bottom of dense standpipe be connected in underflow material discharge tube, in the underflow material by in the top of dense standpipe 1 enter, discharge the bottom; In the dilution water pipe is installed on the dense standpipe, and be provided with upper and lower dilution water valve FV1 and FV2; As shown in Figure 3, turbulent flow generator 2 comprises rotor 301, housing 302, sealing 303, bearing support 304, axle 305, belt pulley transmitting assemblies 306, bearing 307 and vacuum exhaust adapter 308, motor 309; The rotor 301 of turbulent flow generator 2 is fixed on the axle 305, is installed in the housing 302 with bearing support 304 by sealing 303, drives rotors 301 rotations by belt pulley transmitting assemblies 306; As shown in Figure 4, centrifugal middle underflow pump 3 comprises the pump housing 401, adjust cover 402, half-opened impeller 403, pump postoperculum 404, seal 405, bearing support 406, pump shaft 407, coupling 408, motor 409, base 410, adjust and to cover 402 and be bolted on the pump housing 401 by adjusting, half-opened impeller 403 is fixed on the pump shaft 407, pump shaft 407 passes pump postoperculum 404, sealing 405, the bearing support 406 that is fixed on the pump housing 401, connect with motor 409 by coupling 408, the pump housing 401 is installed on the base 410 with motor 409; As Fig. 5, shown in Figure 6, three-phase separator comprises little cylindrical shell 501, large cylinder 502, suction tude 503, outlet pipe 504 and drain pipe 505, suction tude 503 tube walls and large cylinder 502 barrels are tangent on how much, and outlet pipe 504 tube walls and little cylindrical shell 501 barrels are tangent on how much.
The bottom of dense standpipe 1 during the turbulent flow generator 2 of the utility model middle underflow pump system and device is fixed on by suction flange, the outlet of turbulent flow generator 2 is connected with the suction flange of centrifugal middle underflow pump 3, the bearing of turbulent flow generator 2 is connected with the suction tude 503 of three-phase separator 4 by vacuum exhaust pipeline 6, and the outlet pipe 504 of three-phase separator 4 is connected with vacuum pump 5.
The middle underflow material that enters dense standpipe 1 drives fluidization under the strong shear action that rotors 301 high speed rotating produce at the motor 309 of turbulent flow generator 2 by belt pulley transmitting assemblies 306, and make the air that is clipped in the middle underflow material be collected at the center of turbulent flow generator 2 rotors 301, air, water, the fiber three-phase medium is got rid of by being drawn into three-phase separator 4 of vacuum pump 5, has removed the outlet from centrifugal middle underflow pump 3 under centrifugal middle underflow pump 3 half-opened impellers 403 centrifugal actions of air and fluidised middle underflow material and has sent into the bleaching tower realization according to the flow and the pressure continous-stable of technique initialization.

Claims (7)

1. middle underflow pump system and device, dense standpipe, turbulent flow generator, centrifugal middle underflow pump, three-phase separator and vacuum pump in comprising, it is characterized in that described turbulent flow generator be fixed on by suction flange in the bottom of dense standpipe, the outlet of turbulent flow generator is connected with the suction flange of centrifugal middle underflow pump, the bearing of turbulent flow generator is connected with the three-phase separator suction tude by the vacuum exhaust pipeline, and the three-phase separator steam outlet pipe is connected with vacuum pump.
2. middle underflow pump system and device according to claim 1, it is characterized in that described in the main body of dense standpipe be cylindrical, and the bottom of dense standpipe is converted into miter angle along the center line of described cylinder in described.
3. middle underflow pump system and device according to claim 1, it is characterized in that described in dense standpipe constitute by main body and base section, main body is cylindrical, base section is served as reasons with a plane along the central point of described cylinder bottom surface and become the direction of miter angle that cylinder is excised the remaining and cylindrical part that links together in back with the cylinder bottom surface, the bottom notch of excision back cylinder is surrounded by the part of circular cone, the vertex of a cone of circular cone is positioned at described central spot, the circular cone bottom surface is parallel with the cylinder bottom surface, and the diameter of circular cone bottom surface is consistent with the diameter of cylinder bottom surface.
3, middle underflow pump system and device according to claim 2, the diameter that it is characterized in that described cylinder are less than 900mm, and height is greater than 3000mm.
4. middle underflow pump system and device according to claim 1, it is characterized in that described turbulent flow generator comprises rotor, housing, sealing, axle, belt pulley transmitting assemblies, bearing and vacuum exhaust adapter, the rotor of turbulent flow generator is three-jaw or four paws shape rotor, and is welded with spiral vane on the pawl.
5. turbulent flow generator according to claim 4 is characterized in that the axle of described turbulent flow generator is hollow shaft, and axle is connected by bearing with bearing, is connected with Vacuum exhaust tube on the bearing.
6. middle underflow pump system and device according to claim 1 is characterized in that described centrifugal middle underflow pump is the centrifugal stock pump of half-opened impeller, is equipped with the adjustment lining that cooperates with described half-opened impeller on the pump case of centrifugal stock pump.
7. middle underflow pump system and device according to claim 1, it is characterized in that described three-phase separator is airtight container, be welded by two cylindrical tubes of size, all be welded with connecting tube on two cylindrical shells of size, the outer wall of connecting tube and cylinder body outer wall are tangent on how much.
CN200920238145XU 2009-10-30 2009-10-30 Medium-consistency slurry pump system device Expired - Lifetime CN201539415U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101734600B (en) * 2009-10-30 2012-12-26 华南理工大学 Method for conveying medium-concentration stuff and medium-concentration stuff pump system device for implementing same
CN112648191A (en) * 2020-12-22 2021-04-13 杭州玖点轻工机械有限公司 Medium consistency stock pump and conveying system thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101734600B (en) * 2009-10-30 2012-12-26 华南理工大学 Method for conveying medium-concentration stuff and medium-concentration stuff pump system device for implementing same
CN112648191A (en) * 2020-12-22 2021-04-13 杭州玖点轻工机械有限公司 Medium consistency stock pump and conveying system thereof

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AV01 Patent right actively abandoned

Granted publication date: 20100804

Effective date of abandoning: 20091030

RGAV Abandon patent right to avoid regrant