CN217438012U

CN217438012U - Municipal sludge low-temperature drying device

Info

Publication number: CN217438012U
Application number: CN202221250542.0U
Authority: CN
Inventors: 韩全; 张恒
Original assignee: Guangdong Shangchen Environmental Technology Co ltd
Current assignee: Guangdong Shangchen Environmental Technology Co ltd
Priority date: 2022-05-22
Filing date: 2022-05-22
Publication date: 2022-09-16
Anticipated expiration: 2032-05-22

Abstract

The utility model relates to the technical field of municipal sludge drying treatment, in particular to a municipal sludge low-temperature drying device, which comprises a sedimentation tank, a coarse grid, a sludge discharge tank, a sludge concentration tank, a dehydrator, a sludge low-temperature drying machine and a sludge storage chamber which are connected in sequence, wherein the sludge in the sludge discharge tank is conveyed into the sludge concentration tank through a conveying pump, the sludge concentrated by the sludge concentration tank is conveyed into the dehydrator through a screw pump, and a sludge conveyor is arranged between the dehydrator and the sludge low-temperature drying machine; mud carries out preliminary sedimentation through the sedimentation tank, carries out the preliminary treatment back through thick grid, sludge thickening tank and hydroextractor again, and the mud homogenization degree that forms is higher, and does not contain the jumbo size hard piece, can not cause the damage to the slitter of mud low temperature mummification machine, and produced dry mud moisture content is low, the treatment cost of greatly reduced solid fertilizer for cost reduction.

Description

Municipal sludge low-temperature drying device

Technical Field

The utility model relates to a municipal sludge drying handles technical field, specifically is a municipal sludge low temperature mummification device.

Background

The homogenization degree of the sludge dried by the traditional low-temperature sludge drying device is low, so that the dried sludge still contains large-size hard blocks, the water content of the generated dry sludge is high, the treatment cost for fixing waste materials is greatly increased, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide a municipal sludge low-temperature drying device, which has the advantages of low dry sludge moisture content and low cost.

The utility model discloses the task realizes through following technical scheme:

a municipal sludge low-temperature drying device comprises a sedimentation tank, a coarse grid, a sludge discharge tank, a sludge concentration tank, a dehydrator, a sludge low-temperature drying machine and a sludge storage room which are sequentially connected, wherein sludge in the sludge discharge tank is conveyed into the sludge concentration tank through a conveying pump, the sludge concentrated by the sludge concentration tank is conveyed into the dehydrator through a screw pump, and a sludge conveyor is arranged between the dehydrator and the sludge low-temperature drying machine; and a stirrer is arranged in the sludge concentration tank and is electrically connected with the control cabinet.

According to the preferable technical scheme, a liquid adding box is arranged above the interior of the dewatering machine, a liquid level meter is arranged in the liquid adding box, an outlet of the liquid adding box is connected with a solution metering pump, and a liquid outlet valve is arranged on a connecting pipeline between the liquid adding box and the solution metering pump.

The utility model provides a pair of municipal administration mud low temperature mummification device, mud carry out preliminary sedimentation through the sedimentation tank, carry out the preliminary treatment back through thick grid, sludge thickening tank and hydroextractor again, and the mud homogenization degree that forms is higher, and does not contain the hard piece of jumbo size, can not cause the damage to the slitter of mud low temperature mummification machine, and produced mud moisture content is low, the treatment cost of greatly reduced solid fertilizer for cost reduction.

The conception, the specific structure and the effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic structural diagram of a municipal sludge low-temperature drying device.

Wherein: the system comprises a sedimentation tank 1, a coarse grid 2, a sludge discharge tank 3, a sludge concentration tank 4, a stirrer 41, a control cabinet 42, a screw pump 5, a dehydrator 6, a liquid adding box 61, a liquid level meter 62, a metering pump 63, a liquid outlet valve 64, a sludge low-temperature drying machine 7, a sludge storage chamber 8, a conveying pump 9 and a sludge conveyor 10.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the terms "first," "second," and the like, as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another; the terms "a" or "an," and the like, also do not denote a limitation of quantity, but rather denote the presence of at least one; the words "plurality," "plurality," and the like mean two or more. Unless otherwise specified, "front", "back", "lower", "upper", and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "connected" and the like are to be understood in a broad sense and may, for example, be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through intervening elements, and may not be limited to physical or mechanical connections, but may include electrical connections. The specific meaning of the above words in this application will be understood in a particular context to those of ordinary skill in the art.

As shown in figure 1, the municipal sludge low-temperature drying device comprises a sedimentation tank 1, a coarse grid 2, a sludge discharge tank 3, a sludge concentration tank 4, a dewatering machine 6, a sludge low-temperature drying machine 7 and a sludge storage chamber 8 which are sequentially connected, wherein sludge in the sludge discharge tank 3 is conveyed into the sludge concentration tank 4 through a conveying pump 9, the sludge concentrated by the sludge concentration tank 4 is conveyed into the dewatering machine 6 through a screw pump 5, and a sludge conveyor 10 is arranged between the dewatering machine 6 and the sludge low-temperature drying machine 7. In this patent, mud carries out preliminary sedimentation through sedimentation tank 1, pass through thick grid 2 again, sludge thickener 4 and hydroextractor 6 carry out the preliminary treatment after, the mud homogenization degree that forms is higher, and do not contain the jumbo size hard piece, can not cause the damage to the slitter of mud low temperature mummification machine 7, and produced dry mud moisture content is low, the treatment cost of greatly reduced solid fertilizer, make cost reduction, and hydroextractor 6 and mud low temperature mummification machine 7 in this patent are automatic control, only need set up the procedure can the automatic operation, degree of automation is high and the energy consumption is lower, and is simple to handle, reduce artifical aspect expenditure. The sludge low-temperature dryer 7 in the patent is the prior art, and the structural principle is not described herein.

In a preferred embodiment, the stirrer 41 is disposed in the sludge concentration tank 4, the stirrer 41 is electrically connected to the control cabinet 42, and the control cabinet 42 controls the stirrer 41 to rotate, so that the sludge in the sludge concentration tank 4 can be uniformly stirred without clogging.

As preferred embodiment, top in the hydroextractor 6 is equipped with liquid feeding case 61, be equipped with level gauge 62 in the liquid feeding case 61, the exit linkage solution measuring pump 63 of liquid feeding case 61, the connecting line between liquid feeding case 61 and the solution measuring pump 63 is equipped with out liquid valve 64, when moving, the system detects the dry sludge and enters into the dewatering machine back, it has polyacrylamide to add in liquid feeding case 61, control measuring pump 63 realizes automatic polyacrylamide of throwing, it is timely to trail, it is big to compare manual feeding operation intensity of labour, this embodiment degree of automation is high, need not manual operation and can add polyacrylamide automatically, and easy control, and the improvement control precision.

The working process of the above embodiment is as follows: the sludge is primarily precipitated through a sedimentation tank 1, and larger impurities such as plastic bags, leaves and the like are filtered through a coarse grating 2; the sludge enters a sludge discharge tank 3 to rotate, at the moment, the viscous sludge at the bottom of the sludge discharge tank 3 is pumped into a sludge concentration tank 4 by a delivery pump 9 for further concentration, and a stirrer 41 arranged in the sludge concentration tank 4 can make the sludge uniform and not easy to block; viscous sludge in a sludge concentration tank 4 is conveyed into a dehydrator 6 through a screw pump 5, the working process of the dehydrator 6 automatically operates according to a set program, polyacrylamide is required to be added manually during operation, the water content of the dehydrated sludge is 65-80%, the dehydrated sludge is conveyed into a sludge low-temperature drier 7 through a sludge conveyor 10 to be dried and reduced, dried sludge after drying treatment is strip-shaped, the water content of the dried sludge is 10-60%, the strip-shaped dried sludge can be conveyed to a sludge storage room 8 to be stored at the moment, and the strip-shaped dried sludge can be conveyed out at intervals.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A municipal sludge low-temperature drying device is characterized by comprising a sedimentation tank, a coarse grid, a sludge discharge tank, a sludge concentration tank, a dehydrator, a sludge low-temperature drying machine and a sludge storage chamber which are sequentially connected, wherein sludge in the sludge discharge tank is conveyed into the sludge concentration tank through a conveying pump, the sludge concentrated by the sludge concentration tank is conveyed into the dehydrator through a screw pump, and a sludge conveyor is arranged between the dehydrator and the sludge low-temperature drying machine; and a stirrer is arranged in the sludge concentration tank and is electrically connected with the control cabinet.

2. The municipal sludge low-temperature drying device according to claim 1, wherein a liquid feeding box is arranged above the inside of the dewatering machine, a liquid level meter is arranged in the liquid feeding box, an outlet of the liquid feeding box is connected with a solution metering pump, and a liquid outlet valve is arranged on a connecting pipeline between the liquid feeding box and the solution metering pump.