Material slag separation and collection device for evaporator cleaning operation

Abstract

The utility model discloses a material and slag separating and collecting device for evaporator cleaning operation. The material and slag separating and collecting device comprises an evaporator tank body, a material blocking barrel, a material blocking apron board, a material guiding pipe and a material and slag separating box. The material blocking barrel is detachably connected to a top tank opening of the evaporator tank body, and the material blocking barrel is provided with an annular vertical wall extending upwards; the material blocking apron board is fixedly connected to the peripheral side of the material blocking barrel in a surrounding mode. One end of the material guide pipe is detachably connected to a tank opening in the bottom of the evaporator tank body, the other end of the material guide pipe extends to the position above the material-slag separation box, the top of the material-slag separation box is open, a layer of filter screen is arranged in the material-slag separation box, and a blow-off pipe is arranged at the bottom of the material-slag separation box. According to the utility model, sewage left during cleaning can be quickly filtered, material residues can be automatically collected, human intervention on a site is not needed, and the site is kept clean, tidy and pollution-free during cleaning operation.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporator cleaning operations, in particular to a material slag separation and collection device used for evaporator cleaning operations. Background Art

[0002] In alumina production, after the evaporator has been running for a certain period of time, a thick layer of sodium-silicon slag will form on the inner wall of the heating tube bundle, which will reduce the heat exchange efficiency of the evaporator and increase steam consumption. Therefore, the evaporator heating tube bundle must be regularly cleaned by hydraulic high pressure. In the process of hydraulic high pressure cleaning of the heating tube bundle, many difficulties are often encountered, which affect the operation site and operation efficiency, such as:

[0003] 1. If Figure 1 As shown, the preliminary work of the cleaning operation requires the removal of the tank mouth on the top of the evaporator and the installation of a high-pressure cleaner, but there is no protection near the tank mouth. The water sprayed by the high-pressure cleaner causes splashing at the top tank mouth of the evaporator, and the water leaks from the gap between the evaporator tank body and the platform, causing serious contamination on each floor of the evaporator platform.

[0004] 2. Before cleaning, the discharge pipe connected to the tank port at the bottom of the evaporator needs to be removed to prevent the residue washed down by the high-pressure water flow from falling into the discharge pipe and causing blockage during cleaning.

[0005] 3. During the cleaning process, a large amount of sodium-silicon slag and scar slag flowed out from the tank mouth at the bottom of the evaporator, accumulated and polluted the surrounding environment. In addition, when restoring the installation of the evaporator, the surrounding environment needed to be cleaned first, which seriously affected the progress of the operation and was not conducive to the rapid restoration of the evaporator, resulting in a decrease in production capacity.

[0006] Therefore, in order to solve the above technical problems, it is necessary to design a slag separation and collection device for evaporator cleaning operations. Utility Model Content

[0007] The utility model provides a material residue separation and collection device for evaporator cleaning operations, which can quickly filter sewage left over from cleaning and automatically collect material residues without human intervention on site, thus keeping the site clean, tidy and pollution-free during the cleaning operation.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A slag separation and collection device for evaporator cleaning operations, comprising an evaporator tank body, a material blocking barrel, a material blocking skirt, a material guiding pipe and a slag separation box; the material blocking barrel is detachably connected to the top tank opening of the evaporator tank body, and the material blocking barrel is provided with an annular vertical wall extending upward; the material blocking skirt is fixedly connected to the outer peripheral side of the material blocking barrel in a circumferential manner; one end of the material guiding pipe is detachably connected to the bottom tank opening of the evaporator tank body, and the other end of the material guiding pipe extends to the top of the slag separation box, the top of the slag separation box is open, a layer of filter screen is provided in the slag separation box, and a sewage pipe is provided at the bottom of the slag separation box.

[0010] Furthermore, the material-slag separation box includes a box body and four universal wheels installed at the four corners of the bottom of the box body in a one-to-one correspondence; the inner walls on both sides of the box body are provided with a card slot, and the positions of the two card slots correspond to each other; a frame is fixedly connected to the periphery of the filter screen, and the filter screen is inserted into the box body through the frame, dividing the box body into two chambers, and the other end of the material guide pipe extends to the top of one of the chambers; the sewage pipe is opened on the bottom side of the other chamber.

[0011] Furthermore, the card slot is located at one fifth of the length of the box body.

[0012] Furthermore, the material guide pipe includes a funnel, a bent pipe and several sections of straight pipes; the top of the funnel is provided with a flange that matches and connects to the bottom tank mouth of the evaporator tank body, the bottom of the funnel is connected to one end of the bent pipe, and the other end of the bent pipe is connected end to end with several sections of the straight pipes in sequence.

[0013] Furthermore, the material blocking barrel is configured as an annular cylindrical structure, and an annular transverse flange extends outward from the bottom of the material blocking barrel. The transverse flange is provided with connecting holes corresponding one to one with the top tank mouth flange surface of the evaporator tank body, and the transverse flange is connected to the top tank mouth flange surface of the evaporator tank body by bolts.

[0014] Furthermore, the material-blocking skirt comprises several sections of fan-shaped iron sheets, which are connected end to end and fixed to form a conical structure that is narrow at the top and wide at the bottom. The inner ring of the iron sheet cone is connected to the transverse flange of the material-blocking barrel; and the outer ring of the iron sheet opens downward.

[0015] Furthermore, one side of the inner ring of each of the iron sheets is bent and provided with connecting holes corresponding one to one with the top tank mouth flange surface of the evaporator tank body; one side of the inner ring of each of the iron sheets is pressed tightly against the top tank mouth flange surface of the evaporator tank body through the transverse flange.

[0016] The beneficial effects of the utility model are:

[0017] 1) The utility model can block most of the water splashing through the material blocking cylinder, and cover the gap between the evaporator tank and the platform through the material blocking skirt to prevent water mist from falling through the gap; the sewage is drained to the material slag separation box through the material guide pipe, and the material slag is filtered, separated and recovered through the material slag separation box; the cleaning process does not require human intervention on site, and the site is kept clean and pollution-free during the cleaning operation, which helps to quickly resume the evaporator after cleaning.

[0018] 2) The card slot is located at one-fifth of the length of the box body, and the guide pipe discharges the sewage into a larger chamber, so that the chamber where the sewage falls has enough space to collect more material residues.

[0019] 3) The guide pipe receives sewage through a funnel, and forms a conduit through the splicing of elbows and straight pipes to drain it into the material-slag separation box. In actual use, it can be adaptively modified according to site needs, and different numbers of elbows and straight pipes can be spliced ​​to the appropriate position for discharge, so that the sewage pipe of the material-slag separation box can be aligned with the sewage tank on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of the evaporator tank of the utility model without cleaning operation;

[0022] Figure 2 It is a structural schematic diagram of using the utility model to perform evaporator cleaning operation;

[0023] Figure 3 It is a three-dimensional diagram of the medium material slag separation box and the filter screen of the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the middle-blocking barrel of the utility model;

[0025] Figure 5 It is a three-dimensional diagram of the middle baffle skirt of the utility model;

[0026] Figure ID:

[0027] 1-evaporator tank, 2-material blocking cylinder, 3-material blocking skirt, 4-material guiding pipe, 5-material-slag separation box, 21-annular vertical wall, 22-lateral flange, 41-funnel, 42-elbow pipe, 43-straight pipe, 51-filter screen, 52-box, 53-card slot, 54-drain pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is referred to as being "set in the middle", it does not only mean being set in the middle, as long as it is not set at both ends within the range defined by the middle. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] Reference Figures 1 to 5 As shown, a material-slag separation and collection device for evaporator cleaning operation includes an evaporator tank body 1, a material blocking cylinder 2, a material blocking skirt 3, a material guiding pipe 4 and a material-slag separation box 5.

[0032] The material blocking barrel 2 is detachably connected to the top tank opening of the evaporator tank body 1. The material blocking barrel 2 can be set as an annular cylindrical structure. The material blocking barrel 2 is provided with an annular vertical wall 21 extending upward. The bottom of the material blocking barrel 2 extends outwardly with an annular transverse flange 22. The transverse flange 22 is provided with connection holes corresponding to the flange surface of the top tank opening of the evaporator tank body 1. The transverse flange 22 is connected to the flange surface of the top tank opening of the evaporator tank body 1 by bolts. The material blocking skirt 3 is fixedly connected to the outer peripheral side of the material blocking barrel 2 in a circumferential manner; the material blocking skirt 3 includes a plurality of sections of fan-shaped iron sheets, and the plurality of sections of iron sheets are connected end to end and fixed to form a conical structure with a narrow top and a wide bottom. The inner ring of the iron sheet cone is connected to the transverse flange 22 of the material blocking barrel 2; the outer ring of the iron sheet opens downward. One side of the inner ring of each iron sheet is bent and provided with connection holes corresponding to the flange surface of the top tank mouth of the evaporator tank body 1; one side of the inner ring of each iron sheet is pressed tightly against the flange surface of the top tank mouth of the evaporator tank body 1 through the transverse flange 22 of the material blocking barrel 2. Of course, the fixing method can also be selected by welding, and the inner ring side of the iron sheet is welded to the transverse flange 22. The material blocking barrel can block most of the splashing of water flow, and the material blocking skirt 3 can cover the gap between the evaporator tank body 1 and the platform 6 to prevent water mist from falling from the gap.

[0033] One end of the guide pipe 4 is detachably connected to the bottom tank opening of the evaporator tank body 1, and the other end of the guide pipe 4 extends to the top of the slag separation box 5. The top of the slag separation box 5 is open, and a filter screen 51 is provided in the slag separation box 5. A sewage pipe 54 is provided at the bottom of the slag separation box 5. The slag separation box 5 includes a box body 52 and four universal wheels installed in the four corners of the bottom of the box body 52 in a one-to-one correspondence; the inner walls of the two opposite sides of the box body 51 are each provided with a card slot 53, and the positions of the two card slots 53 are in a one-to-one correspondence. A frame is fixedly connected to the periphery of the filter screen 51, and the filter screen 51 is inserted into the box body 52 through the frame, dividing the box body 52 into two chambers, and the other end of the guide pipe 4 extends to the top of one of the chambers; the sewage pipe 54 is opened at one side of the bottom of the other chamber. Specifically, the card slot 53 is located at one fifth of the length of the box body 52, and the material guide pipe 4 discharges the sewage into a larger chamber, so that the chamber where the sewage falls has enough space to collect more material residues.

[0034] The guide pipe 4 includes a funnel 41, an elbow 42 and several sections of straight pipes 43; the top of the funnel 41 is provided with a flange that matches the bottom tank mouth of the evaporator tank body 1, the bottom of the funnel 41 is connected to one end of the elbow 42, and the other end of the elbow 42 is connected to several sections of the straight pipes 43 in sequence, and each end is connected by a flange. The guide pipe receives sewage through the funnel, and forms a conduit through the splicing of the elbow and the straight pipe to drain it into the material-slag separation box. In actual use, adaptive changes can be made according to site needs, and different numbers of elbows 42 and straight pipes 43 can be spliced ​​to a suitable position for discharge, so that the sewage pipe of the material-slag separation box 5 can be aligned with the sewage tank on the ground.

[0035] The utility model can block most of the splashing of water flow through the material blocking cylinder, and cover the gap between the evaporator tank body 1 and the platform 6 through the material blocking skirt plate 3 to prevent water mist from falling through the gap; the sewage is drained to the material slag separation box through the material guide pipe 4, and the material slag is filtered, separated and recovered through the material slag separation box; the cleaning process does not require human intervention on site, and the site is kept clean and pollution-free during the cleaning operation, which helps to quickly restore the evaporator to service after cleaning.

[0036] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. Any modification or equivalent substitution that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. A slag separation and collection device for evaporator cleaning operation, characterized in that: It includes an evaporator tank body, a material blocking barrel, a material blocking skirt, a material guiding pipe and a material-slag separation box; the material blocking barrel is detachably connected to the top tank opening of the evaporator tank body, and the material blocking barrel is provided with an annular vertical wall extending upward; the material blocking skirt is fixedly connected to the outer peripheral side of the material blocking barrel in a surrounding manner; one end of the material guiding pipe is detachably connected to the bottom tank opening of the evaporator tank body, and the other end of the material guiding pipe extends to the top of the material-slag separation box, the top of the material-slag separation box is open, a layer of filter screen is provided in the material-slag separation box, and a sewage pipe is provided at the bottom of the material-slag separation box.

2. The slag separation and collection device for evaporator cleaning operation according to claim 1, characterized in that: The material-slag separation box includes a box body and four universal wheels installed at the four corners of the bottom of the box body in a one-to-one correspondence; the inner walls on both sides of the box body are provided with a card slot, and the positions of the two card slots are in a one-to-one correspondence; a frame is fixedly connected to the periphery of the filter screen, and the filter screen is inserted into the box body through the frame, dividing the box body into two chambers, and the other end of the material guide pipe extends to the top of one of the chambers; the sewage pipe is opened on the bottom side of the other chamber.

3. The slag separation and collection device for evaporator cleaning operation according to claim 2, characterized in that: The card slot is located at one fifth of the length of the box body.

4. The slag separation and collection device for evaporator cleaning operation according to claim 1, characterized in that: The material guide pipe includes a funnel, a curved pipe and several sections of straight pipes; the top of the funnel is provided with a flange that matches and connects to the bottom tank mouth of the evaporator tank body, the bottom of the funnel is connected to one end of the curved pipe, and the other end of the curved pipe is connected end to end with several sections of the straight pipes in sequence.

5. The slag separation and collection device for evaporator cleaning operation according to claim 1, characterized in that: The material retaining barrel is set as an annular cylindrical structure, and an annular transverse flange extends outward from the bottom of the material retaining barrel. The transverse flange is provided with connecting holes corresponding to the top tank mouth flange surface of the evaporator tank body one by one. The transverse flange is connected to the top tank mouth flange surface of the evaporator tank body by bolts.

6. The slag separation and collection device for evaporator cleaning operation according to claim 5, characterized in that: The material-blocking skirt comprises a plurality of sections of fan-shaped iron sheets, which are connected end to end and fixed to form a conical structure that is narrow at the top and wide at the bottom. The inner ring of the iron sheet cone is connected to the transverse flange of the material-blocking barrel; the outer ring of the iron sheet opens downward.

7. The slag separation and collection device for evaporator cleaning operation according to claim 6, characterized in that: One side of the inner ring of each iron sheet is bent and provided with connecting holes corresponding to the top tank mouth flange surface of the evaporator tank body one by one; one side of the inner ring of each iron sheet is pressed tightly against the top tank mouth flange surface of the evaporator tank body through the transverse flange.

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