CN212403908U - High-efficient mud-water separation equipment - Google Patents

Abstract

The utility model relates to a high-efficient mud-water separation equipment, the shell bottom of this equipment sets up the bagger, and the bagger upper end is extended there is the tubbiness filter screen, and the filter screen periphery winds the shell, there is the intermediate layer passageway between shell and the filter screen, interbedded bottom has wastewater discharge port, and the draft tube setting is in the filter screen, and the open position of draft tube is located the bagger with below the horizontal plane that the filter screen is bordered, the bagger bottom has the sludge outlet. By adopting the high-efficiency mud-water separation equipment, the water content of the dewatered sludge is lower than 90 percent, the equipment is compact, the dewatering time can be greatly shortened, the efficiency of the original dewatering equipment can be improved by more than 30 percent, and the water content of the dewatered sludge cake is at least lower than that of the sludge cake by more than 10-20 percent.

Description

High-efficient mud-water separation equipment

Technical Field

The utility model relates to a splitter, especially an efficient mud-water separation equipment.

Background

In the sewage treatment link, a large amount of chemical sludge and biological sludge (the water content is more than or equal to 99%) with water can be generated by adding medicines, electrochemistry, biology and other treatment modes, the properties of the sludge are often very different, and various mud-water separation equipment shows unfavorable conditions of low efficiency, low operation capacity and the like in use, for example: if the floc in the sludge is relatively light (the specific gravity is close to water), the sludge is easy to float upwards and has low settling speed; secondly, if the sludge particles are fine (the particle size is only 1-5 mm in general), the sludge particles are not easy to precipitate, are easy to be brought out by water flow, and lose the effect of mud-water separation. In order to solve the problems, the volume of the conventional sedimentation equipment or the tank body needs to be designed to be large enough, but once the quality of the muddy water is abnormal, more suspended matters are carried by the effluent, and great influence is also brought to the subsequent treatment equipment.

At present dewatering equipment, like plate and frame filter press, fold spiral shell machine etc. dewatering efficiency is not high, and the main reason still lies in into mud moisture content height, consequently, if before advancing dewatering equipment, can be lower with mud moisture separation, so not only dewatering equipment is efficient, and the mud cake moisture content after the dehydration is more than 10~20% than before at least.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, especially solve with high costs, inefficiency, time consuming scheduling problem, the utility model provides a high-efficient mud-water separation equipment.

The technical scheme of the utility model is that: the utility model provides a high-efficient mud-water separation equipment, its characterized in that, the shell bottom of this equipment sets up the bagger, and the bagger upper end extends has tubbiness filter screen, and the filter screen periphery winds the shell, have the intermediate layer passageway between shell and the filter screen, interbedded bottom has the waste water discharge port, and the draft tube sets up in the filter screen, and the open position of draft tube is located the bagger with below the horizontal plane that the filter screen was bordered, the bagger bottom has the mud export.

Furthermore, the guide shell enters the equipment from top to bottom, and the bottom of the guide shell is open.

Furthermore, the bottom opening of the guide shell is a horn mouth.

Further, the guide shell is located in the center of the device.

Further, a back flushing pipe is arranged in the interlayer.

Furthermore, the position of the recoil pipe is movably adjusted up and down.

Further, the sludge outlet is controlled by a valve.

Furthermore, the meshes on the filter screen are 20-1000 meshes, preferably 50 meshes.

Has the advantages that:

1. by adopting the high-efficiency mud-water separation equipment, consumables such as filter cloth and the like are not needed, and the water content of the dewatered sludge can be lower than 90%.

2. The high-efficiency mud-water separation equipment provided by the invention is compact, and the dehydration time can be greatly shortened.

3. By adopting the high-efficiency mud-water separation equipment as the dehydration equipment for pretreatment, the efficiency of the original dehydration equipment can be improved by more than 30 percent, and the water content of the dehydrated mud cake is at least 10-20 percent lower than that of the original mud cake.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

Wherein: 1 is a shell, 2 is a mud bucket, 3 is a filter screen, 4 is an interlayer, 5 is a wastewater discharge port, 6 is a guide cylinder, 7 is a sludge outlet, 8 is a bell mouth, and 9 is a back flushing pipe.

Detailed Description

The technical solution of the present invention is explained below with reference to the accompanying drawings.

As shown in figure 1, the bottom of a shell 1 of the equipment is provided with a mud bucket 2, the upper end of the mud bucket 2 extends to form a barrel-shaped filter screen 3, the filter screen 3 is wound on the periphery of the shell 1, an interlayer 4 channel is arranged between the shell 1 and the filter screen 3, the bottom of the interlayer 4 is provided with a wastewater discharge port 5, a guide cylinder 6 is inserted into the filter screen 3 from top to bottom, the bottom of the guide cylinder 3 is opened, the opening position of the guide cylinder is located below the horizontal plane where the mud bucket 2 and the filter screen 3 are located, the bottom of the mud bucket 2 is provided with a sludge outlet 7, and filtered wastewater is discharged outwards through the bottom of the interlayer 4.

The bottom opening of the guide shell 6 is a bell mouth 8. The guide shell 6 is located in the centre of the apparatus. The bell mouth 8 plays a role in guiding flow, so that sludge is better distributed.

A backflush tube 9 is arranged in the sandwich layer 4. The position of the recoil pipe 9 is adjusted up and down movably. The back flushing pipe 9 is arranged outside the filter screen 3 and can move up and down, and when the filter screen 3 is not smooth in water outlet, a back flushing program is started.

In addition, the sludge outlet 7 is valve-controlled. The intermittent sludge discharge of the equipment can be controlled.

The working principle of mud-water separation is as follows: firstly, the mud-water mixture is sent into a flow guide pipe, diffused through a bell mouth and then enters a mud bucket; the sludge in the hopper slowly rises to the bell mouth and then is in a natural sedimentation process, at the moment, supernatant fluid is discharged from a waste water discharge port when flowing over the filter screen, and the sludge is intercepted and blocked in the filter screen by the filter screen; when the sludge is continuously fed, the sludge content of a settling layer near the sludge hopper is higher and higher, and the subsequent continuous sludge is blocked by the sludge layer below the previous bell mouth, so that the sludge in the sludge-water mixture is intercepted, the sludge layer forms a filter cake filtering effect, water passes through the sludge layer, the sludge content in the sewage is greatly reduced, and the sewage is discharged from the wastewater outlet pipe in time through the filter screen; then, when the mud-water mixture reaches a certain liquid level difference, mud is compressed by the liquid on the upper layer to be more compact, the mud-water separation effect is better, the mud continuously enters the mud-water mixture from the horn mouth of the guide pipe, the mud is discharged from the sewage outlet pipe at the bottom, and is pumped into the dewatering equipment by the plunger pump to be subjected to filter pressing, a certain mud amount is stored below the horizontal plane of the filter screen to be ensured in the process, and the mud can be continuously used as a filter medium to filter the subsequent mud-water mixture, so that the purposes of effluent clarification and compact mud layer compression are achieved. Intermittent opening and closing of the valve can well control the process. In the whole mud-water separation process, the filter screen is not a main separation part, only plays a role in blocking and fixing the mud layer, and keeps certain water permeability, so the mesh number can be set to be in a wide range of 20-1000 meshes, and the mud layer is actually used for playing a filtering effect.

When the equipment is used, the following implementation steps can be adopted:

(1) after the wastewater is subjected to chemical dosing, electrochemical treatment and biological treatment, a coagulant aid is added, and the generated mud-water mixture (the water content is more than or equal to 99%) is sent to high-efficiency mud-water separation equipment.

(2) Separating mud water by high-efficiency mud-water separation equipment, filtering out waste water and producing mud with the water content of less than 90%; the waste water enters a waste water treatment system for treatment, and the generated mud is directly pumped into further dehydration equipment by a high-pressure plunger pump.

(3) After the sludge is dehydrated by the dehydration equipment, the produced wastewater enters a wastewater treatment system, and the separated sludge cake is further treated.

The above embodiment is right the utility model discloses the explanation of device optimal scheme still falls into its equivalent replacement the utility model discloses a protection scope.

Claims (9)

1. The utility model provides a high-efficient mud-water separation equipment, its characterized in that, the shell bottom of this equipment sets up the bagger, and the bagger upper end extends has tubbiness filter screen, and the filter screen periphery winds the shell, have the intermediate layer passageway between shell and the filter screen, interbedded bottom has the waste water discharge port, and the draft tube sets up in the filter screen, the open position of draft tube is located the bagger with below the horizontal plane that the filter screen was bordered, the bagger bottom has the mud export.

2. The high-efficiency mud-water separation device of claim 1, wherein the guide shell enters the device from top to bottom, and the bottom of the guide shell is open.

3. The efficient mud-water separation device of claim 1, wherein the bottom opening of the guide shell is a bell mouth.

4. The apparatus for separating sludge and water according to claim 1 wherein the draft tube is located at the center of the apparatus.

5. The high efficiency sludge water separating apparatus of claim 1 wherein a backwash pipe is disposed within the interlayer.

6. The high efficiency sludge water separating apparatus of claim 5 wherein the position of the backwash pipe is adjustable up and down.

7. The high efficiency sludge water separating apparatus of claim 1 wherein the sludge outlet is valved.

8. The efficient mud-water separation equipment as claimed in claim 1, wherein the mesh on the filter screen is 20-1000 meshes.

9. The high efficiency sludge water separating apparatus of claim 8 wherein the mesh of the screen is 50 mesh.

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