Slag circulating filtration concentrator

Abstract

The utility model discloses a slag circulating filtration concentrator which comprises an evaporation tank and a concentration tank, a feeding pipe and a steam outlet pipe are arranged on the upper portion of the evaporation tank, a steam inlet pipe is arranged on the lower portion of the evaporation tank, a waste gas pipe is arranged on the upper portion of the concentration tank, a discharging pipe is arranged on the lower portion of the concentration tank, and the upper portions of the evaporation tank and the concentration tank are communicated through an upper circulating pipe and the lower portions of the evaporation tank and the concentration tank are communicated through a lower circulating pipe. The device is characterized in that the height of the tank bottom of the evaporation tank is higher than that of the tank bottom of the concentration tank, the lower circulating pipe comprises a straight pipe part and an inclined pipe part, and the inclined pipe part is detachably provided with a filtering structure. The filtering structure in the inclined pipe part of the slag circulating filtering concentrator can filter slag in feed liquid, so that the purity of concentrated liquid is higher, the yield is improved, and after the slag is gradually filtered, the phenomenon that the slag is attached to the inner walls of the evaporation tank, the concentration tank, the upper circulating pipe and the lower circulating pipe is greatly reduced, and the service life of the evaporation tank, the concentration tank, the upper circulating pipe and the lower circulating pipe is prolonged. Therefore, the cleaning period of the circulating concentrator is prolonged, and the cleaning cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a concentrated equipment technical field, concretely relates to a slag circulating filter concentrator. BACKGROUND

[0002] The existing circulating concentrator generally includes evaporation tank and concentration tank, the upper portion of evaporation tank is equipped with feed pipe and steam outlet pipe, the lower portion is equipped with steam inlet pipe and discharge pipe, the upper portion of concentration tank is equipped with waste gas pipe, the upper portion of evaporation tank and concentration tank is communicated through upper circulating pipe, the lower portion is communicated through lower circulating pipe, circulating pump is equipped on the lower circulating pipe, the liquid enters evaporation tank from feed pipe, and through lower circulating pipe, concentration tank and upper circulating pipe, it enters evaporation tank again, carries out circulating evaporation concentration, and finally concentrated liquid is discharged from discharge pipe, the circulating concentrator in the actual use process, the slag in the liquid cannot be filtered, can only be discharged together with the last concentrated liquid, the purity of concentrated liquid is affected, and the slag of not having filtering structure is more easily attached on the inner wall of evaporation tank, concentration tank, upper circulating pipe and lower circulating pipe, the cleaning period of circulating concentrator is shortened, and the cleaning cost is increased. SUMMARY

[0003] In view of the deficiencies of the background art, the technical problem to be solved by the utility model is to provide a slag circulating filter concentrator capable of filtering slag, preventing slag from sticking to the wall and reducing cleaning cost.

[0004] To this end, the utility model is adopted as follows Technical scheme to realize:

[0005] The slag circulating filter concentrator includes evaporation tank and concentration tank, the upper portion of evaporation tank is equipped with feed pipe and steam outlet pipe, the lower portion is equipped with steam inlet pipe, the upper portion of concentration tank is equipped with waste gas pipe, and the lower portion is equipped with discharge pipe, the upper portion of evaporation tank and concentration tank is communicated through upper circulating pipe, the lower portion is communicated through lower circulating pipe, circulating pump is equipped on the lower circulating pipe, and the tank bottom height of evaporation tank is higher than the tank bottom height of concentration tank, the lower circulating pipe includes straight pipe portion and inclined pipe portion, and the inclined pipe portion is detachably provided with filtering structure.

[0006] Further, the front and rear sides of the inclined pipe portion are both configured with shunt pipes, the upper end of the shunt pipe is communicated with the high place of the inclined pipe portion, the lower end is communicated with the low place of the inclined pipe portion, the filtering structure is detachably connected with the shunt pipe.

[0007] Further, the high places of the inclined pipe portion and shunt pipe are separately provided with butterfly valves, the middle part of the shunt pipe has an opening, the opening is hinged with a pipe cover, the pipe cover and shunt pipe are clamped tightly through a plurality of clamps, the filtering structure is a filter screen cylinder that can be put into the opening, and a plurality of positioning rods are arranged in the shunt pipe, the lower end of the filter screen cylinder abuts against the positioning rods.

[0008] Further, the upper end surface of the shunt pipe on the left and right sides of the opening is provided with a strip-shaped slot, and the pipe cover is provided with a sealing strip inserted into the strip-shaped slot.

[0009] Further, the shunt pipe on the upper and lower sides of the opening is provided with a circular arc step, and the upper end surface of the circular arc step is provided with a circular arc slot, and the pipe cover is provided with a circular arc sealing strip inserted into the circular arc slot.

[0010] Further, the outer end surface of the pipe cover is provided with a handle.

[0011] After the above technical scheme is adopted, the filter structure in the inclined pipe part can filter out the slag in the material liquid, so that the purity of the concentrated liquid is higher, and the yield is improved. Moreover, after the slag is gradually filtered, the phenomenon of the slag adhering to the inner walls of the evaporation tank, the concentration tank, the upper circulating pipe and the lower circulating pipe is greatly reduced, thereby prolonging the cleaning period of the circulating concentrator and reducing the cleaning cost. Since the bottom height of the evaporation tank is higher than the bottom height of the concentration tank, the inclined arrangement of the inclined pipe part and the filter structure is provided, so that the material liquid has not only the power of the circulating pump but also the acceleration of gravity when passing through, so that the passing speed of the material liquid is faster, the filter structure is prevented from being viscous due to liquid accumulation, and the flow of the material liquid is further affected. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model has the following drawings:

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the inclined pipe part and the shunt pipe in the utility model;

[0015] Figure 3 It is a structural schematic diagram of the shunt pipe after the pipe cover is opened;

[0016] Figure 4 It is a sectional view of the shunt pipe.

[0017] The drawings show that 1 is an evaporation tank, 2 is a concentration tank, 3 is a feeding pipe, 4 is a steam outlet pipe, 5 is a steam inlet pipe, 6 is a waste gas pipe, 7 is a discharging pipe, 8 is an upper circulating pipe, 9 is a lower circulating pipe, 10 is a circulating pump, 11 is a straight pipe part, 12 is an inclined pipe part, 13 is a shunt pipe, 14 is a butterfly valve, 15 is an opening, 16 is a pipe cover, 17 is a clamp, 18 is a filter screen cylinder, 19 is a positioning rod, 20 is a strip-shaped slot, 21 is a sealing strip, 22 is a circular arc step, 23 is a circular arc slot, 24 is a circular arc sealing strip, and 25 is a handle. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0019] With reference to the drawings, the slag circulating filter concentrator provided by the utility model comprises an evaporation tank 1 and a concentration tank 2, the upper portion of the evaporation tank 1 is provided with a feeding pipe 3 and a steam outlet pipe 4, and the lower portion of the evaporation tank 1 is provided with a steam inlet pipe 5, the upper portion of the concentration tank 2 is provided with a waste gas pipe 6, and the lower portion of the concentration tank 2 is provided with a discharging pipe 7, the upper portions of the evaporation tank 1 and the concentration tank 2 are communicated through an upper circulating pipe 8, the lower portions of the evaporation tank 1 and the concentration tank 2 are communicated through a lower circulating pipe 9, a circulating pump 10 is arranged on the lower circulating pipe 9, and the bottom of the evaporation tank 1 is higher than the bottom of the concentration tank 2, the lower circulating pipe 9 comprises a straight pipe part 11 and an inclined pipe part 12, the inclined pipe part 12 is detachably provided with a filter structure, both sides of the inclined pipe part 12 are provided with shunt pipes 13, the upper ends of the shunt pipes 13 are communicated with the high position of the inclined pipe part 12, and the lower ends of the shunt pipes 13 are communicated with the low position of the inclined pipe part 12, the filter structure is detachably connected with the shunt pipes 13, the high positions of the inclined pipe part 12 and the shunt pipes 13 are respectively provided with butterfly valves 14, the middle part of the shunt pipe 13 is provided with an opening 15, the opening 15 is hinged with a pipe cover 16, the pipe cover 16 and the shunt pipe 13 are clamped tightly through a plurality of clamps 17, the filter structure is a filter screen cylinder 18 which can be put into the opening 15, a plurality of positioning rods 19 are arranged in the shunt pipe 13 and abut against the lower end of the filter screen cylinder 18, the upper end faces of the shunt pipes 13 on the left and right sides of the opening 15 are provided with strip-shaped insertion grooves 20, the pipe cover 16 is provided with sealing strips 21 which are inserted into the strip-shaped insertion grooves 20, the shunt pipes 13 on the upper and lower sides of the opening 15 are provided with circular-arc-shaped steps 22, the upper end faces of the circular-arc-shaped steps 22 are provided with circular-arc-shaped insertion grooves 23, the pipe cover 16 is provided with circular-arc-shaped sealing strips 24 which are inserted into the circular-arc-shaped insertion grooves 23, and the outer end face of the pipe cover 16 is provided with a lifting handle 25.

[0020] The working principle of the utility model is as follows: the filter screen cylinder 18 is put into the opening 15, then the pipe cover 16 is covered, the circular-arc-shaped sealing strips 24 are inserted into the circular-arc-shaped insertion grooves 23, the sealing strips 21 are inserted into the strip-shaped insertion grooves 20, then the clamps 17 clamp the pipe cover 16 and the shunt pipes 13 tightly to ensure the sealing property of the place, the butterfly valves 14 of the inclined pipe part 12 are closed, the butterfly valves 14 of the two shunt pipes 13 are opened, and then the circulating concentration work is carried out, the liquid material enters the lower circulating pipe 9 from the evaporation tank 1, enters the shunt pipes 13 and then enters the concentration tank 2, after the liquid material circulates for several times, most of the slag is filtered out by the filter screen cylinder 18, then the butterfly valves 14 of the inclined pipe part 12 are opened, the butterfly valves 14 of the two shunt pipes 13 are closed, the liquid material is subjected to normal circulating concentration work, until the qualified concentrated liquid is obtained and then discharged through the discharging pipe 7, after the discharging is completed, the clamps 17 are removed, the pipe cover 16 is opened through the lifting handle 25, and finally the filter screen cylinder 18 is taken out for cleaning.

[0021] In the embodiment, the filter structure in the inclined pipe portion 12 can filter out the slag in the material liquid, so that the purity of the concentrated liquid is higher, and the yield is improved. Moreover, after the slag is gradually filtered out, the phenomenon of the slag adhering to the inner walls of the evaporation tank 1, the concentration tank 2, the upper circulating pipe 8 and the lower circulating pipe 9 is greatly reduced, so that the cleaning cycle of the circulating concentration device is prolonged, and the cleaning cost is reduced. Since the bottom height of the evaporation tank 1 is higher than the bottom height of the concentration tank 2, the inclined arrangement of the inclined pipe portion 12 and the filter structure is provided. When the material liquid passes through, not only the power of the circulating pump 10 is provided, but also the acceleration of gravity is provided, so that the passing speed of the material liquid is faster, and the filter structure is prevented from being filled with liquid and becoming viscous, so as to affect the flow of the material liquid. The two shunt pipes 13 can filter out the slag in the material liquid faster, and the working efficiency is higher. Meanwhile, the filter structure is prevented from becoming viscous and affecting the flow of the material liquid. The positioning rod 19 can prevent the filter screen cylinder 18 from moving downward, and the filter screen cylinder 18 is convenient to take out. The detachable filter structure not only facilitates the cleaning and maintenance of the filter screen cylinder 18, but also facilitates the separate cleaning of the shunt pipe 13. The strip-shaped slot 20 and the sealing strip 21, the circular-arc-shaped slot 23 and the circular-arc-shaped sealing strip 24 are provided, so that the sealing performance of the opening 15 is better, and liquid leakage is prevented. The handle 25 is provided, so that the pipe cover 16 is convenient to open and close.

[0022] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the above preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical scheme of the present application. Any modification, change, equivalent change and modification of the above embodiments, which does not depart from the technical scheme of the present application, is still within the scope of the technical scheme of the present application.

Claims

1. A slag circulating filtration concentrator comprising an evaporation tank and a concentration tank, the evaporation tank being provided with a feed pipe and a steam outlet pipe at the upper part and a steam inlet pipe at the lower part, the concentration tank being provided with a waste gas pipe at the upper part and a discharge pipe at the lower part, the evaporation tank and the concentration tank being connected by an upper circulating pipe at the upper part and by a lower circulating pipe at the lower part, a circulating pump being provided on the lower circulating pipe, characterized in that: The bottom height of the evaporation tank is higher than that of the concentration tank, the lower circulation pipe comprises a straight pipe part and an inclined pipe part, and the inclined pipe part is detachably provided with a filtering structure. ​ 2. The slag recycle filter concentrator of claim 1, wherein: Both sides of the inclined pipe part are provided with shunt pipes, the upper ends of the shunt pipes are communicated with the high part of the inclined pipe part, and the lower ends of the shunt pipes are communicated with the low part of the inclined pipe part.

3. The slag recycle filter concentrator of claim 2, wherein: The high parts of the inclined pipe part and the shunt pipes are respectively provided with butterfly valves, the middle part of the shunt pipe is provided with an opening, a pipe cover is hinged to the opening, the pipe cover and the shunt pipe are fastened by a plurality of clamps, the filtering structure is a filter screen cylinder which can be put into the opening, and a plurality of positioning rods are arranged in the shunt pipe and abut against the lower ends of the filter screen cylinders.

4. The slag recycle filter concentrator of claim 3, wherein: The upper end faces of the shunt pipes on the left and right sides of the opening are provided with strip-shaped insertion grooves, and the pipe cover is provided with sealing strips which are inserted into the strip-shaped insertion grooves.

5. The slag recycle filter concentrator of claim 3, wherein: The shunt pipes on the upper and lower sides of the opening are provided with circular-arc-shaped steps, the upper end faces of the circular-arc-shaped steps are provided with circular-arc-shaped insertion grooves, and the pipe cover is provided with circular-arc-shaped sealing strips which are inserted into the circular-arc-shaped insertion grooves.

6. The slag recycle filter concentrator of claim 3 or 4 or 5, wherein: The outer end face of the pipe cover is provided with a handle.

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