CN2144528Y

CN2144528Y - Settling tower with pipe chute setting tank

Info

Publication number: CN2144528Y
Application number: CN 92241220
Authority: CN
Inventors: 王杰
Original assignee: TANGSHAN BRANCH GENERAL INST OF COAL SCIENCES
Current assignee: TANGSHAN BRANCH GENERAL INST OF COAL SCIENCES
Priority date: 1992-11-11
Filing date: 1992-11-11
Publication date: 1993-10-27
Anticipated expiration: 2002-11-11

Abstract

The utility model relates to a settling tower with a pipe chute settling tank. The settling tower with the pipe chute settling tank is suitable for the condensation and clarification processing of slime water or sewage. In the utility model, settling pipe chutes which are slantways placed are distributed and arranged in a settling tower vessel; a conduit spillway with holes is arranged above the pipe chute; a siphonage type discharge pipe with a bell jar is arranged at the bottom of the vessel. When the slime water or the sewage enter the settling tower, the solid particles in the slime water or the sewage settle in the horizontal laminar flow; the overflow water passes through the pipe chute so that the fine particles settle to the wall of the pipe chute and then slide down and settle to the vessel bottom to be discharged. The solid content of the clarified overflow water descends to 0.5 to 0.1 gram / liter. To the coal separating plant, the utility model can realize the washing water recycle, the closed water circuit and the water saving, and can eliminate the environmental pollution.

Description

Settling tower with pipe chute setting tank

The present invention relates to a kind of gravity concentrating clarifying device, be specially adapted to coal preparation plant's black water and other Separation of Solid and Liquid and sewage concentrating clarifying and handle.

At present, concentrating clarifying device in coal preparation plant's slurry circulating system, described just like " coal preparation technology rudimentary knowledge " 219～221 pages that the Coal Industry Press publishes in June, 1978, the pyramid concentration basin is arranged, concentrate funnel, precipitator tower and raker thickener, wherein precipitator tower as shown in Figure 4, comprise the toot that surrounds by shell 1, in this container center upper portion black water is set and goes into barrel 2, the black water that adds flocculant flows into toot, scatter at along continuous straight runs, and in the liquid stream that slowly rises, solid particles sediment is got off, discharge through awl end discharge pipeline 5: clarified water imports top water leg 4, discharges multiplexing through overflow pipe 9.This precipitator tower clarifying effect is relatively poor, and the overflow water after the clarification still has the solids content of 10～50 grams per liters, and great majority are about 50 grams per liters, and awl end discharge pipeline easily stops up.

Task of the present invention provides a kind of precipitator tower that adds the tube settling device on conical vessel top, and it can not only make particle in black water or the sewage precipitation of scattering in horizontal laminar flow, and can make fine grained continue precipitation via inclined tube.

The present invention adopts following scheme to realize.

By shell surround the cylindrical container in top, the bottom is a toot, central authorities set into water drum at hydrostatic column, outer rim is provided with water leg and overflow pipe, its main points are to lay tilted-putted precipitation inclined tube in hydrostatic column, inclined tube top along continuous straight runs is laid several strips hole overflow pipe, sets up the siphoning type sludge discharging pipe of band bell jar on the shell of toot bottom.Enter the black water or the sewage of toot from going into water drum, at first in horizontal laminar flow under the thicker solid particles sediment, flowing through from bottom to top then, thinner solid particle is deposited in again on the inclined tube diapire in the overflow water of inclined tube, and slides and be precipitated to the awl end and discharge.

Because the present invention adds the inclined tube structure, compare with existing precipitator tower mentioned above, clarifying effect obviously improves, and through test, the overflow water solids content after the clarification is reduced to 0.5～0.1 grams per liter, mostly about 0.1 grams per liter.Adopt the present invention for coal preparation plant, can realize the multiplexing and wash water closed cycle of wash water, reach water saving and eliminate the black water problem of environment pollution caused.

Be described in detail structure of the present invention and embodiment below in conjunction with accompanying drawing.

Fig. 1 represents to add the precipitator tower front section view of tube settling device.

Fig. 2 presentation graphs 1A-A overflow pipe profile.

Fig. 3 presentation graphs 2B-B precipitation inclined tube profile.

Fig. 4 represents the structure chart of existing precipitator tower.

The precipitator tower that adds the tube settling device as Fig. 1 represents comprises shell 1, and it is that hydrostatic column 10, bottom are toot 11 that this shell surrounds top, and its cone angle is generally 60 degree; Central authorities at hydrostatic column set into water drum 2; Cylinder and coniform shell confluce level connect firmly some strip metal crossbeams 8, about 1.5 meters of its spacing, on crossbeam, lay the grid 7 that band steel is made, 400 * 400 millimeters of mesh sizes, on grid, lay the precipitation inclined tube 6 that about 60 degree are placed, this inclined tube can be used the plastics manufacturing, the regular hexahedron that its section such as Fig. 3 represent; The top along continuous straight runs of precipitation inclined tube is laid several strips hole overflow pipe 3, and about 1.2 meters of its spacing, overflow pipe section such as Fig. 2 represent that the pipe end is provided with inlet opening 12,150 millimeters of general calibers, and distance is 150 millimeters between some along its length inlet openings; Overflow pipe 3 communicates with the annular collecting vat 4 of hydrostatic column outer rim, and the water leg bottom is communicated with overflow pipe 9; On the bottom enclosure of toot 11, set up the siphoning type sludge discharging pipe 5 of band bell jar 13.

When black water or sewage add after flocculant mixes, the tube of representing by Fig. 12 that enters enters in the toot 11, and in slow level course flow liquid stream, solid particles sediment is to the toot bottom.The top overflow water is flowed through from bottom to top and is precipitated inclined tube 6, makes thinner solid particles sediment to the inclined tube wall, and sinks down into the toot bottom along the inclined plane.Coal slime that precipitates or mud are discharged by siphoning type sludge discharging pipe 5 under the static pressure effect.Flow into overflow pipe 3 with holes from the up overflow water of precipitation inclined tube, make its uniform overflow, and discharge multiplexing from overflow pipe 9 to annular collecting vat 4.

Claims

1, a kind of precipitator tower that adds the tube settling device, comprise the top hydrostatic column 10, the lower cone appearance device 11 that surround by shell 1, go into water drum 2 what the central authorities of hydrostatic column were provided with, the annular collecting vat 4 that the hydrostatic column outer rim is provided with, and overflow pipe 9 form, it is characterized in that in hydrostatic column, laying tilted-putted precipitation inclined tube 6, precipitation inclined tube top along continuous straight runs is laid some overflow pipes 3, sets up the siphoning type sludge discharging pipe 5 of band bell jar 13 on the shell of toot bottom.

2, according to the described precipitator tower of claim 1, it is characterized in that precipitating inclined tube 6 be laid in the metal beam 8 that connects firmly mutually with shell, and grid 7 on.

3,, it is characterized in that precipitating inclined tube and lay inclination angle 60 degree according to claim 1 or 2 described precipitator towers.