CN211885775U

CN211885775U - Vacuum belt dehydrator

Info

Publication number: CN211885775U
Application number: CN202020344678.2U
Authority: CN
Inventors: 华超; 康宇
Original assignee: Nanjing Kisen International Engineering Co Ltd
Current assignee: Zhongcai International Intelligent Technology Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-11-10
Anticipated expiration: 2030-03-18

Abstract

The utility model relates to a vacuum belt dehydrator, which comprises a frame, a belt conveying line, a dehydrating component, a blanking hopper, a filter cloth, a driven roller, a compression roller, a scraping plate, a material receiving cylinder and a nozzle; the two belt conveying lines are symmetrically arranged in the rack in a front-back mode, the blanking hopper is arranged on the rack and is arranged above the left ends of the two belt conveying lines, the driven rollers are transversely arranged at the left ends and the right ends and below the two belt conveying lines, the filter cloth is sleeved outside the two belt conveying lines and sequentially wound around the driven rollers, and the upper half part of the filter cloth is attached to the upper sides of the two belt conveying lines; the utility model realizes the three-time dehydration of the desulfurized gypsum slurry, and the dehydration principles are different, thereby greatly improving the dehydration effect and further improving the dehydration efficiency; the probability of blockage of the filter cloth is greatly reduced, the replacement frequency of the filter cloth is further greatly reduced, and time and labor are saved.

Description

Vacuum belt dehydrator

Technical Field

The utility model relates to a vacuum belt dehydrator.

Background

At present, the problem of environmental pollution is increasingly serious, and the requirement of each industry on environmental protection indexes is more and more strict, however, part of cement enterprises are limited by raw materials, and the sulfur dioxide content in the discharged flue gas is higher, so that the flue gas needs to be desulfurized.

At present, most cement enterprises adopt a limestone-gypsum method for desulfurization, limestone slurry is atomized by a spray device and then fully contacted with flue gas and reacted, the reacted limestone-gypsum slurry is strongly oxidized to form desulfurized gypsum slurry, and the desulfurized gypsum slurry is dehydrated to obtain desulfurized gypsum; the dehydration of desulfurization gypsum thick liquid needs to be accomplished in vacuum belt hydroextractor, and current vacuum belt hydroextractor dewatering effect is relatively poor, in order to realize the dehydration as far as, just must prolong the dehydration time, leads to the dehydration inefficiency, and the filter cloth blocks up easily after using a period of time in addition, causes the dehydration effect worse, just needs frequent shut down this moment in order to change the filter cloth, wastes time and energy, leads to dehydration efficiency to be lower, treats further improvement.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a vacuum belt dehydrator that has promoted dewatering effect and improved dewatering efficiency by a wide margin, and has reduced the change frequency of filter cloth by a wide margin is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a vacuum belt dehydrator is characterized by comprising a rack, a belt conveying line, a dehydrating assembly, a discharging hopper, filter cloth, a driven roller, a compression roller, a scraping plate, a material receiving barrel and a nozzle; the belt conveyor lines are symmetrically arranged in the rack in a front-back mode, the blanking hopper is arranged on the rack and is arranged above the left ends of the two belt conveyor lines, the driven rollers comprise a plurality of driven rollers which are transversely arranged at the left ends and the right ends and below the two belt conveyor lines, the filter cloth is sleeved outside the two belt conveyor lines and sequentially wound around the driven rollers, and the upper half parts of the filter cloth are attached to the upper sides of the two belt conveyor lines; the utility model discloses a filter cloth, including filter cloth, compression roller, scraper, feed receiving cylinder, shower nozzle, filter cloth, compression roller transversely locates the left end top of two belt conveyor lines and compresses tightly on the filter cloth, scrape the right side that the flitch was located the frame and mutually support with the right-hand member of filter cloth, it locates the below of scraping the flitch and locates the right side outside of frame to connect the feed cylinder, the shower nozzle includes a plurality ofly, and is a plurality of the upper and lower both sides of filter cloth right-hand member the latter half are.

Preferably, the dewatering assembly comprises a cyclone separator, a vacuum tank, a gas-water separation tank, a pipette, a bracket and a squeezing assembly; the cyclone separator comprises a plurality of cyclone separators, a plurality of cyclone separators are arranged at the left end of the frame, the vacuum groove is transversely arranged between two belt conveying lines, the gas-water separation tank is arranged at the outer side of the frame and communicated with the inside of the vacuum groove through a liquid suction pipe, the support is fixed on the frame and arranged above the right end of the filter cloth, and a plurality of extrusion assemblies are arranged in the support.

Preferably, a discharge hole below each cyclone separator is communicated with the upper end of a discharge hopper; the upper end opening of the vacuum groove is attached to the lower side of the upper half part of the filter cloth.

Preferably, the compression assembly comprises a platen and a linear drive; the linear driving devices comprise two linear driving devices which are symmetrically arranged front and back, the pressing plate is transversely arranged below the two linear driving devices and above the filter cloth, and the telescopic ends of the two linear driving devices are vertically arranged downwards and are fixed on the pressing plate.

Compared with the prior art, the utility model has the advantages of: the utility model realizes the three-time dehydration of the desulfurized gypsum slurry, and the dehydration principles are different, thereby greatly improving the dehydration effect and further improving the dehydration efficiency; scrape the setting of flitch, can fully scrape the gypsum piece clean, the setting of a plurality of shower nozzles can wash the gypsum piece of remaining attached to on the filter cloth totally to reduced the probability that the filter cloth takes place to block up by a wide margin, and then reduced the change frequency of filter cloth, labour saving and time saving by a wide margin.

Drawings

FIG. 1 is a front view structural diagram of the present invention;

fig. 2 is a right side view of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1-2, a vacuum belt dehydrator comprises a frame 1, a belt conveyor line 2, a dehydration assembly, a blanking hopper 4, a filter cloth 7, a driven roller 13, a compression roller 12, a scraping plate 8, a material receiving cylinder 9 and a nozzle 10; the belt conveyor lines 2 comprise two belt conveyor lines 2, the two belt conveyor lines 2 are symmetrically arranged in the rack 1 in a front-back mode, the blanking hopper 4 is arranged on the rack 1 and is arranged above the left ends of the two belt conveyor lines 2, the driven rollers 13 comprise a plurality of driven rollers 13, the driven rollers 13 are transversely arranged at the left ends and the right ends and below the two belt conveyor lines 2, the filter cloth 7 is sleeved outside the two belt conveyor lines 2 and sequentially wound around the driven rollers 13, and the upper half parts of the filter cloth 7 are attached to the upper sides of the two belt conveyor lines 2; the pressing roller 12 is transversely arranged above the left ends of the two belt conveying lines 2 and is pressed on the filter cloth 7, the scraping plate 8 is arranged on the right side of the frame 1 and is matched with the right end of the filter cloth 7, the material receiving cylinder 9 is arranged below the scraping plate 8 and is arranged outside the right side of the frame 1, the spray heads 10 comprise a plurality of spray heads, the spray heads 10 are arranged on the upper side and the lower side of the lower half part of the right end of the filter cloth 7, the dehydration assembly is arranged on the frame 1 and is matched with the filter cloth 7, and the dehydration assembly comprises a cyclone separator 3, a vacuum groove 5, an air-water separation tank 11, a liquid suction pipe 14; the cyclone separators 3 comprise a plurality of cyclone separators 3, the cyclone separators 3 are arranged at the left end of the frame 1, a discharge hole below each cyclone separator 3 is communicated with the upper end of the blanking hopper 4, the vacuum groove 5 is transversely arranged between the two belt conveying lines 2, an opening at the upper end of the vacuum groove 5 is attached to the lower side of the upper half part of the filter cloth 7, the gas-water separation tank 11 is arranged at the outer side of the frame 1 and communicated with the inside of the vacuum groove 5 through a pipette 14, the support 63 is fixed on the frame 1 and arranged above the right end of the filter cloth 7, and a plurality of extrusion components are arranged in the support 63; the pressing assembly comprises a pressing plate 62 and a linear driving device 61; the linear driving devices 61 comprise two linear driving devices 61, the two linear driving devices 61 are symmetrically arranged front and back, the pressing plate 62 is transversely arranged below the two linear driving devices 61 and above the filter cloth 7, and the telescopic ends of the two linear driving devices 61 are vertically arranged downwards and are fixed on the pressing plate 62.

The working principle is as follows: feeding the gypsum slurry into each cyclone 3 via the feed inlet of each cyclone 3 to effect a first dewatering and forming a gypsum slurry; then, the gypsum mud is converged in the blanking hopper 4 and falls to the upper part of the left end of the filter cloth 7; starting the two belt conveyor lines 2, driving the filter cloth 7 to operate by using friction force with the lower side of the upper half part of the filter cloth 7 and by means of a plurality of driven rollers 13, and ensuring that the lower side of the upper half part of the filter cloth 7 is always attached to the two belt conveyor lines 2 by the compression roller 12; the gypsum mud is driven by the filter cloth 7 to move rightwards, when the gypsum mud moves to the upper part of the vacuum groove 5, the gas-water separation tank 11 is started, negative pressure is formed in the vacuum groove 5 through the liquid suction pipe 14 by the gas-water separation tank 11, so that moisture in the gypsum mud enters the vacuum groove 5 through the filter cloth 7 under the action of the negative pressure, and then enters the gas-water separation tank 11 through the liquid suction pipe 14 to be collected, and secondary dehydration is finished; then, the gypsum mud continuously moves to the right, when the gypsum mud moves to the lower part of the leftmost extrusion assembly, the telescopic ends of the two linear driving devices 61 in the extrusion assembly extend outwards to push the pressing plate 62 to move downwards to extrude the gypsum mud, so that residual moisture in the gypsum mud is extruded out, after the completion, the telescopic ends of the two linear driving devices 61 in the extrusion assembly contract inwards to drive the pressing plate 62 to move upwards to leave the gypsum mud, meanwhile, the two linear driving devices 61 in the next extrusion assembly operate according to the same principle, and so on until the extrusion assembly on the rightmost side completes extrusion, at this time, the third dehydration is completed, a gypsum block is formed, the gypsum block continues to operate along with the filter cloth 7, when the gypsum block operates to the scraping plate 8, the scraping plate 8 scrapes the gypsum block off the filter cloth 7 and falls into the material receiving barrel 9 to be collected, thereby completing the whole dehydration process; finally, the filter cloth 7 continues to operate, and when passing through the plurality of spray heads 10, the water supply device connected to each spray head 10 sprays high-pressure water from each spray head 10 toward the filter cloth 7, thereby washing away residual gypsum cake attached to both sides of the filter cloth 7.

The existing vacuum belt dehydrator is poor in dehydration effect, dehydration time needs to be prolonged in order to realize dehydration as much as possible, so that dehydration efficiency is low, filter cloth is easy to block after being used for a period of time, so that the dehydration effect is poor, and at the moment, the filter cloth needs to be frequently stopped to be replaced, so that time and labor are wasted, and the dehydration efficiency is low; the utility model realizes the three-time dehydration of the desulfurized gypsum slurry, and the dehydration principles are different, thereby greatly improving the dehydration effect and further improving the dehydration efficiency; scrape the setting of flitch 8, can fully scrape the gypsum piece, the setting of a plurality of shower nozzles 10 can wash the gypsum piece of remaining attached to on filter cloth 7 totally to reduced filter cloth 7 by a wide margin and taken place the probability of blockking up, and then reduced filter cloth 7's change frequency, labour saving and time saving by a wide margin.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A vacuum belt dehydrator is characterized by comprising a rack, a belt conveying line, a dehydrating assembly, a discharging hopper, filter cloth, a driven roller, a compression roller, a scraping plate, a material receiving barrel and a nozzle; the belt conveyor lines are symmetrically arranged in the rack in a front-back mode, the blanking hopper is arranged on the rack and is arranged above the left ends of the two belt conveyor lines, the driven rollers comprise a plurality of driven rollers which are transversely arranged at the left ends and the right ends and below the two belt conveyor lines, the filter cloth is sleeved outside the two belt conveyor lines and sequentially wound around the driven rollers, and the upper half parts of the filter cloth are attached to the upper sides of the two belt conveyor lines; the utility model discloses a filter cloth, including filter cloth, compression roller, scraper, feed receiving cylinder, shower nozzle, filter cloth, compression roller transversely locates the left end top of two belt conveyor lines and compresses tightly on the filter cloth, scrape the right side that the flitch was located the frame and mutually support with the right-hand member of filter cloth, it locates the below of scraping the flitch and locates the right side outside of frame to connect the feed cylinder, the shower nozzle includes a plurality ofly, and is a plurality of the upper and lower both sides of filter cloth right-hand member the latter half are.

2. The vacuum belt dehydrator of claim 1, wherein the dehydration assembly comprises a cyclone separator, a vacuum tank, a gas-water separation tank, a pipette, a bracket and a squeezing assembly; the cyclone separator comprises a plurality of cyclone separators, a plurality of cyclone separators are arranged at the left end of the frame, the vacuum groove is transversely arranged between two belt conveying lines, the gas-water separation tank is arranged at the outer side of the frame and communicated with the inside of the vacuum groove through a liquid suction pipe, the support is fixed on the frame and arranged above the right end of the filter cloth, and a plurality of extrusion assemblies are arranged in the support.

3. The vacuum belt dehydrator of claim 2, wherein the lower discharge port of each cyclone is communicated with the upper end of a discharge hopper; the upper end opening of the vacuum groove is attached to the lower side of the upper half part of the filter cloth.

4. A vacuum belt dehydrator according to claim 2, wherein said compressing assembly comprises a platen and a linear drive; the linear driving devices comprise two linear driving devices which are symmetrically arranged front and back, the pressing plate is transversely arranged below the two linear driving devices and above the filter cloth, and the telescopic ends of the two linear driving devices are vertically arranged downwards and are fixed on the pressing plate.