CN212740951U

CN212740951U - Membrane filtration device

Info

Publication number: CN212740951U
Application number: CN202020516727.6U
Authority: CN
Inventors: 段东波; 李金玉; 庄严; 李四新
Original assignee: Zhejiang Xusen Halogen Free Smoke Abatement Fire Retardant Co ltd
Current assignee: Zhejiang Xusen Flame Retardant Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-03-19
Anticipated expiration: 2030-04-09

Abstract

A membrane filtration device comprises a filtration tank, a mounting bracket arranged in the filtration tank, a membrane filtration assembly arranged on the mounting bracket and a drain pipe communicated with the membrane filtration assembly; a liquid inlet is arranged at one side of the filter tank, and a liquid discharge pipe penetrates through the liquid inlet; the membrane filtering component is provided with a plurality of vertical branch pipes communicated with the drain pipe; the vertical branch pipes are arranged vertically and in parallel. Therefore, the utilization rate is high, the pollution is reduced, and the cost of the product is finally reduced.

Description

Membrane filtration device

Technical Field

The utility model relates to a flame retardant material produces technical field, especially a membrane filter equipment.

Background

Flame retardant materials, particularly non-halogen flame retardant materials, are becoming increasingly popular with the market. The raw materials and additives of the flame retardant material are mixed to form white slurry, solid-liquid separation is needed, and finally a powdery product is formed. The existing mixed liquid separation equipment for flame-retardant materials is generally only a centrifugal separation device or a sedimentation tank, discharged waste liquid still contains 1-5% of non-halogen flame-retardant materials, the discharged waste liquid pollutes the environment, and the cost of sewage treatment is high if the waste liquid is treated by a sewage treatment plant. And also causes material waste.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a membrane filtration device with high utilization rate, reduced pollution, and finally reduced product cost, so as to solve the above problems.

A membrane filtration device comprises a filtration tank, a mounting bracket arranged in the filtration tank, a membrane filtration assembly arranged on the mounting bracket and a drain pipe communicated with the membrane filtration assembly; a liquid inlet is arranged at one side of the filter tank, and a liquid discharge pipe penetrates through the liquid inlet; the membrane filtering component is provided with a plurality of vertical branch pipes communicated with the drain pipe; the vertical branch pipes are arranged vertically and in parallel.

Furthermore, an overflow port is arranged on the other side of the filtering tank and connected with a third recovery pipe.

Furthermore, a plurality of compartments are formed on the mounting bracket, and mounting grooves are formed in two opposite side walls of each compartment; the membrane filtering component comprises a transverse branch pipe, a plurality of vertical branch pipes and a communication branch pipe, wherein the two ends of the transverse branch pipe are positioned in the mounting groove, the vertical branch pipes are vertically communicated with the bottom of the transverse branch pipe, and the communication branch pipe is communicated with the top of the transverse branch pipe and the drain pipe.

Further, the shape of the communicating branch pipe is arc-shaped.

Further, the shape of the mounting groove is circular.

Further, the mounting groove is in a U shape which is opened upwards.

Further, the membrane filtration device also comprises at least one air gun.

Compared with the prior art, the membrane filtering device of the utility model comprises a filtering tank, a mounting bracket arranged in the filtering tank, a membrane filtering component arranged on the mounting bracket and a drain pipe communicated with the membrane filtering component; a liquid inlet is arranged at one side of the filter tank, and a liquid discharge pipe penetrates through the liquid inlet; the membrane filtering component is provided with a plurality of vertical branch pipes communicated with the drain pipe; the vertical branch pipes are arranged vertically and in parallel. Therefore, the utilization rate is high, the pollution is reduced, and the cost of the product is finally reduced.

Drawings

Embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of a mixed liquid separating apparatus for flame retardant materials.

Fig. 2 is a perspective view of the membrane filtration device of fig. 1.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic view of the inside of the chute separator of fig. 1.

Detailed Description

The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Referring to fig. 1, a mixed liquid separation apparatus for flame retardant materials includes at least one reaction vessel 10, a buffer hopper 20, a centrifugal separator 30, a three-stage sedimentation tank 40, an inclined tube separation device 50, and a membrane filtration device 60.

The centrifuge 30 has a liquid output and a solids output.

The buffer hopper 20 is arranged between the reaction kettle 10 and the centrifugal separator 30, the inlet end of the third-stage sedimentation tank 40 is connected with the liquid output end of the centrifugal separator 30, the outlet end of the third-stage sedimentation tank 40 is connected with the inclined tube separation device 50, and the membrane filtration device 60 is connected between the inclined tube separation device 50 and a water discharge pipe.

The solid output end of the centrifugal separator 30 is used for discharging the solid flame retardant material, and in the present embodiment, the centrifugal separator 30 can separate at least 99% of the solid part in the flame retardant material mixed liquid. The bottom of the third-stage sedimentation tank 40 is also connected with the reaction kettle 10 through a first recovery pipe and a first pump, so as to be used for returning the slurry at the bottom of the third-stage sedimentation tank 40 to the reaction kettle 10.

The bottom of the inclined tube separation device 50 is connected with the reaction kettle 10 through a second recovery tube and a second pump, so as to return the slurry at the bottom of the inclined tube separation device 50 to the reaction kettle 10.

The bottom of the membrane filtration device 60 has a collection tank for collecting and discharging the powdery fire-retardant material. After the membrane filtration device 60 is operated, the flame retardant material powder attached to the membrane filtration device 60 can be blown down into the collection tank by the air gun.

In this embodiment, the number of the reaction kettles 10 is greater than or equal to 2, and the buffer hopper 20 is used for receiving the flame retardant material mixed liquid transmitted from the reaction kettle 10, temporarily storing the flame retardant material mixed liquid, controlling the material conveying speed, and avoiding idling of the centrifugal separator 30 caused by shutdown of one reaction kettle 10.

The outer wall height of tertiary sedimentation tank 40 is 2m, and tertiary sedimentation tank 40 includes one-level precipitation tank 41, second grade precipitation tank 42 and tertiary precipitation tank 43 from entry end to exit end in proper order, and wherein the height of the minimum lateral wall of one-level precipitation tank 41 is 1.8m, and the height of the minimum lateral wall of second grade precipitation tank 42 is 1.2 m.

The third settling tank 43 is connected with the bottom of the inclined tube separation device 50 through a pipette, and the top of the inclined tube separation device 50 is connected with the membrane filtration device 60 through a drain pipe.

A pipette pump 44 is connected to the pipette. The bottoms of the first-stage precipitation tank 41, the second-stage precipitation tank 42 and the third-stage precipitation tank 43 are connected with a first recovery pipe.

The inside of the inclined tube separating device 50 is obliquely provided with a plurality of inclined tubes 53. The mixed liquid of the flame retardant materials, which enters the inclined tube separation device 50 through the liquid suction pipe, gradually overflows the inclined tubes 53 from the bottom of the inclined tube separation device 50 upwards, and the mixed liquid of the flame retardant materials moves along the gap between two adjacent inclined tubes 53. In the process that the flame retardant material mixed liquid moves upwards, the solid part in the flame retardant material mixed liquid is adsorbed on the inclined tube 53, so that the solid content of the mixed liquid output by the inclined tube separation device 50 is reduced, and when the solid part adsorbed on the inclined tube 53 reaches a certain amount, the solid part sinks to the bottom of the inclined tube separation device 50 along the inclined tube 53 under the action of gravity. In the present embodiment, the inclined tube 53 is a PP inclined tube, and the inclined angle of the inclined tube 53 is 30 to 80 degrees, preferably 45 to 60 degrees.

The membrane filtration device 60 is provided with a plurality of vertical branch pipes 632 and a drain pipe 64 communicated with the vertical branch pipes 632, and the moisture in the mixed liquid of the flame retardant material gradually penetrates through the vertical branch pipes 632 and is discharged through the drain pipe 64. In this embodiment, the vertical branch pipes 632 are vertically and parallelly disposed, and the drain pipe 64 is at least partially horizontally disposed. The vertical branch pipes 632 are alumina ceramic pipes.

Referring to fig. 2 and 3, the membrane filtration device 60 includes a filtration tank 601, a mounting bracket 62 disposed in the filtration tank 601, a membrane filtration module 63 mounted on the mounting bracket 62, and a drain pipe 64 communicated with the membrane filtration module 63.

One side of the filtering tank 601 is provided with a liquid inlet, the other side is provided with an overflow port 603, the liquid discharge pipe 602 penetrates through the liquid inlet, and the overflow port 603 is connected with the third-stage sedimentation tank 40 through a third recovery pipe.

The mounting bracket 62 is formed with a plurality of compartments, and each of the compartments has mounting grooves 621 formed on two opposite sidewalls. The mounting groove 621 has a circular shape or a U-shape opened upward.

The membrane filtering assembly 63 includes a lateral branch pipe 631 having both ends positioned in the mounting groove 621, a plurality of vertical branch pipes 632 vertically communicating with the bottom of the lateral branch pipe 631, and a communication branch pipe 633 communicating the top of the lateral branch pipe 631 with the drain pipe 64. In the present embodiment, the communication branch pipes 633 are arc-shaped.

Referring to fig. 4, the pipe chute separating device 50 includes a tank 51, a pipe chute mounting bracket 52 disposed in the tank 51, and a plurality of pipe chutes 53 obliquely disposed on the pipe chute mounting bracket 52.

In this embodiment, the tank 51 has an inlet 56 at the bottom and an outlet 55 at the top, and the outlet 55 is located on the inner side wall of the tank 51 opposite to the inlet 56.

At least one collecting hopper 54 is further arranged at the bottom of the tank body 51, the collecting hopper 54 is in a circular truncated cone shape, and the large head end of the collecting hopper 54 faces the top of the tank body 51. Thus, the circumferential side walls of the collection hopper 54 are inclined, and the solid portion in the mixed solution of the flame retardant material can be collected conveniently.

In the present embodiment, the number of the collecting hoppers 54 is 2 to 3 to collect the solid portions, respectively, to reduce the collecting pressure and improve the working efficiency.

The inner side wall of the tank body 51 is provided with a mounting step in a protruding manner, and the inclined tube mounting bracket 52 is positioned on the mounting step.

Compared with the prior art, the membrane filtering device of the utility model comprises a filtering tank 601, a mounting bracket 62 arranged in the filtering tank 601, a membrane filtering component 63 arranged on the mounting bracket 62 and a drain pipe 64 communicated with the membrane filtering component 63; a liquid inlet is formed in one side of the filter tank 601, and a liquid discharge pipe 602 penetrates through the liquid inlet; the membrane filtration assembly 63 has a plurality of vertical branch pipes 632 in communication with the drain pipe 64; the vertical branch pipes 632 are vertically and parallelly disposed. Therefore, the utilization rate is high, the pollution is reduced, and the cost of the product is finally reduced.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. A membrane filtration device, characterized by: comprises a filter tank, a mounting bracket arranged in the filter tank, a membrane filtering component arranged on the mounting bracket and a drain pipe communicated with the membrane filtering component; a liquid inlet is arranged at one side of the filter tank, and a liquid discharge pipe penetrates through the liquid inlet; the membrane filtering component is provided with a plurality of vertical branch pipes communicated with the drain pipe; the vertical branch pipes are arranged vertically and in parallel; a plurality of compartments are formed on the mounting bracket, and mounting grooves are formed in two opposite side walls of each compartment; the membrane filtering component comprises a transverse branch pipe, a plurality of vertical branch pipes and a communication branch pipe, wherein the two ends of the transverse branch pipe are positioned in the mounting groove, the vertical branch pipes are vertically communicated with the bottom of the transverse branch pipe, and the communication branch pipe is communicated with the top of the transverse branch pipe and the drain pipe.

2. The membrane filtration device of claim 1, wherein: and an overflow port is arranged on the other side of the filter tank and is connected with a third recovery pipe.

3. The membrane filtration device of claim 1, wherein: the shape of the communicating branch pipe is arc.

4. The membrane filtration device of claim 1, wherein: the mounting groove is circular in shape.

5. The membrane filtration device of claim 1, wherein: the mounting groove is in a U shape with an upward opening.

6. The membrane filtration device of claim 1, wherein: the membrane filtration device further comprises at least one air lance.