Tail water treatment device for rectifying tower

Abstract

The utility model belongs to the technical field of tail water treatment, and particularly relates to a rectifying tower tail water treatment device which comprises an upper barrel, and a tail water inlet pipe, a gas outlet pipe and a motor box are fixedly connected to the top of the upper barrel. The outer wall of the bottom of the upper cylinder body is fixedly connected with a suspended matter outlet pipe; the bottom of the upper cylinder body is fixedly connected with a liquid separation plate; a group of liquid distribution ports are formed in the liquid distribution plate; the top of the liquid separation plate is fixedly connected with an inclined plate; a pair of filter plates is mounted on the side wall of the inclined plate; the filter plate is fixedly connected to the top of the liquid separation plate and the inner wall of the upper cylinder body; the tail water inlet pipe extends between the pair of filter plates; a scraping mechanism is arranged on the inner side of the filter plate; the problems that when tail water is treated, suspended solids in the tail water of a rectifying tower consume ozone, the tail water treatment time is prolonged, and the tail water treatment cost is increased are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tail water treatment, in particular to a distillation tower tail water treatment device. Background Art

[0002] Tail water treatment refers to the re-treatment of industrial, domestic and agricultural wastewater that has been treated but has not yet reached the water environment standards. The tail water of the distillation tower contains a large amount of organic matter, and oxidation method is usually used to treat the organic matter in the tail water.

[0003] In the prior art, ozone is usually used as an oxidant, and a catalyst is used to oxidize organic matter in the tail water, so that the organic matter is completely decomposed, thereby achieving the effect of purifying the tail water. However, when treating the tail water, the suspended matter in the tail water of the distillation tower will consume ozone, increasing the time and cost of tail water treatment. For this reason, the utility model provides a distillation tower tail water treatment device. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology, the problem that the suspended matter in the tail water of the distillation tower consumes ozone and increases the time and cost of tail water treatment is solved when treating the tail water.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a distillation tower tail water treatment device described in the utility model is characterized in that: it includes an upper cylinder, the top of the upper cylinder is fixedly connected with a tail water inlet pipe, a gas outlet pipe and a motor box; the bottom outer wall of the upper cylinder is fixedly connected with a suspended matter outlet pipe; the bottom of the upper cylinder is fixedly connected with a separator plate; a group of liquid separation ports are provided on the separator plate; the top of the separator plate is fixedly connected with an inclined plate; a pair of filter plates are installed on the side wall of the inclined plate; the filter plate is fixedly connected to the top of the separator plate and the inner wall of the upper cylinder; the tail water inlet pipe extends between a pair of filter plates; and a scraping mechanism is provided on the inner side of the filter plate.

[0006] Preferably, the scraping mechanism includes a group of scrapers; the scrapers are fitted with the inner side of the filter plate; the scrapers are fixed to the fixed frame; the bottom of the fixed frame is adapted to the inclined plate; a pair of limit blocks are fixed on both sides of the fixed frame; a pair of limit grooves are opened on the inner wall of the upper cylinder; the limit blocks are slidably connected to the limit grooves; the motor box drives a rotating rod; the rotating rod is connected to the fixed frame through a reciprocating thread; the rotating rod passes through the top of the upper cylinder and the liquid separation plate.

[0007] Preferably, a lower cylinder is fixedly connected to the bottom of the liquid separation plate; a catalyst inlet pipe is fixedly connected to the top side wall of the lower cylinder; the rotating rod is rotatably connected to the bottom of the lower cylinder; a group of fan blades is fixedly connected to the rotating rod; a tail water outlet pipe and an ozone inlet pipe are fixedly connected to the outer wall of the bottom of the lower cylinder; the ozone inlet pipe is connected to a drain pipe; and a water stop valve is fixedly connected to the drain pipe.

[0008] Preferably, an air passage is provided at the bottom of the lower cylinder; the air passage is provided with an air inlet and six branches, and the air inlet is connected to the ozone inlet pipe; a group of ozone outlet one-way valves are fixedly connected to the branch channels respectively.

[0009] Preferably, a filter port is provided at the bottom of the suspended matter outlet pipe; a liquid storage tank is fixedly connected to the bottom of the suspended matter outlet pipe; a filtrate inlet pipe is fixedly connected to the side wall of the liquid storage tank; the filtrate inlet pipe is fixedly connected to the outer wall of the lower cylinder, and the filtrate inlet pipe extends into the interior of the lower cylinder.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The utility model discloses a distillation tower tail water treatment device, which filters suspended matter by a filter plate to prevent the suspended matter from consuming ozone and increasing ozone consumption, and then enters the lower cylinder through the liquid separation port on the liquid separation plate. The liquid separation port disperses the tail water and can effectively reuse the ozone escaping from the lower cylinder, thereby reducing ozone consumption and reducing the cost of tail water treatment.

[0012] 2. In the distillation tower tail water treatment device described in the utility model, the rotating rod drives the scraper on the fixed frame to scrape the suspended matter on the inner side of the filter plate up and down, which can prevent the filter plate from being blocked due to excessive attachment of suspended matter.

[0013] 3. In the distillation tower tail water treatment device described in the utility model, the air duct and the ozone outlet one-way valve arranged increase the contact area between ozone and the mixed liquid, improve the reaction speed between ozone and tail water, and thus shorten the treatment time of tail water. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a side sectional view of the utility model;

[0017] Figure 3 It is a cross-sectional view of the bottom of the lower cylinder and a partial structural view;

[0018] Figure 4 It is a cross-sectional view and partial structural view of the liquid separation plate and the upper cylinder;

[0019] In the figure: 1. upper cylinder; 11. tail water inlet pipe; 12. gas outlet pipe; 13. motor box; 14. suspended matter outlet pipe; 141. filter port; 142. liquid storage tank; 15. limit groove; 2. liquid separation plate; 21. liquid separation port; 22. inclined plate; 23. filter plate; 3. lower cylinder; 31. catalyst inlet pipe; 32. tail water outlet pipe; 33. ozone inlet pipe; 34. drain pipe; 341. water stop valve; 35. filtrate inlet pipe; 36. airway; 361. ozone outlet one-way valve; 4. rotating rod; 41. reciprocating thread; 42. fixed frame; 421. scraper; 422. limit block; 43. fan blade. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] Embodiment 1

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, a distillation tower tail water treatment device described in an embodiment of the utility model comprises an upper cylinder 1, the top of the upper cylinder 1 is fixedly connected with a tail water inlet pipe 11, a gas outlet pipe 12 and a motor box 13; the bottom outer wall of the upper cylinder 1 is fixedly connected with a suspended matter outlet pipe 14; the bottom of the upper cylinder 1 is fixedly connected with a liquid separator 2; a group of liquid separators 21 are provided on the liquid separator 2; the top of the liquid separator 2 is fixedly connected with an inclined plate 22; a pair of filter plates 23 are installed on the side wall of the inclined plate 22; the filter plate 23 is fixedly connected to the top of the liquid separator 2 and the inner wall of the upper cylinder 1; the tail water inlet pipe 11 extends between the pair of filter plates 23; when working, the tail water enters the upper cylinder 1 through the tail water inlet pipe 11, and is The filter plate 23 filters the suspended matter to prevent the suspended matter from consuming ozone and increasing the ozone consumption, and then enters the lower cylinder 3 through the liquid separation port 21 on the liquid separation plate 2. The liquid separation port 21 can effectively reuse the ozone escaping from the lower cylinder 3 by dispersing the tail water; the lower cylinder 3 is fixedly connected to the bottom of the liquid separation plate 2; the catalyst inlet pipe 31 is fixedly connected to the top side wall of the lower cylinder 3; the rotating rod 4 is rotatably connected to the bottom of the lower cylinder 3; a group of fan blades 43 are fixedly connected to the rotating rod 4; the tail water outlet pipe 32 and the ozone inlet pipe 33 are fixedly connected to the outer wall of the bottom of the lower cylinder 3; the ozone inlet pipe 33 is connected to the drain pipe 34; and the water stop valve 341 is fixedly connected to the drain pipe 34. When working, the catalyst enters through the catalyst inlet pipe 31, and the rotating rod 4 drives the fan blades 43 to evenly mix the catalyst with the tail water in the lower cylinder 3, which can speed up the subsequent processing speed.

[0023] Furthermore, the gas outlet pipe 12 is connected to the ozone decomposition equipment to prevent air pollution. A liquid level sensor is installed in the lower cylinder 3 to control the opening and closing of the tail water inlet pipe 11 by detecting the liquid level of the incoming tail water. The catalyst is a hydrogen peroxide aqueous solution.

[0024] Embodiment 2

[0025] like Figure 2 , Figure 4 As shown, on the basis of Example 1, a scraping mechanism is provided on the inner side of the filter plate 23; the scraping mechanism includes a group of scrapers 421; the scrapers 421 are fitted with the inner side of the filter plate 23; the scrapers 421 are fixedly connected to the fixed frame 42; the bottom of the fixed frame 42 is adapted to the inclined plate 22; a pair of limit blocks 422 are fixedly connected to both sides of the fixed frame 42; a pair of limit grooves 15 are provided on the inner wall of the upper cylinder 1; the limit blocks 422 are slidably connected with the limit grooves 15; the motor box 13 drives a rotating rod 4; the rotating rod 4 is connected to the fixed frame 42 through a reciprocating thread 41; the rotating rod 4 passes through the top of the upper cylinder 1 and the liquid separation plate 2; when working, the rotating rod 4 is driven by the motor box 13, and since the limit groove 15 is slidably connected with the limit block 422, the rotating rod 4 drives the scraper 421 on the fixed frame 42 to reciprocate up and down to scrape the suspended matter on the inner side of the filter plate 23 to prevent the filter plate 23 from being blocked due to excessive suspended matter.

[0026] Embodiment 3

[0027] like Figure 3 , Figure 4 As shown, on the basis of the first and second embodiments, an air passage 36 is provided at the bottom of the lower cylinder 3; the air passage 36 is provided with an air inlet and six branches, and the air inlet is communicated with the ozone inlet pipe 33; a group of ozone outlet one-way valves 361 are fixedly connected to the branch channels respectively; during operation, ozone enters through the ozone inlet pipe 33, is diverted to the branch channels through the air inlet, and finally enters the mixed liquid through the ozone outlet one-way valve 361 and reacts with the mixed liquid. The branch channels and the ozone outlet one-way valve 361 increase the contact area between ozone and the mixed liquid, and improve the reaction speed between ozone and the mixed liquid, thereby shortening the treatment time of the tail water. time; a filter port 141 is provided at the bottom of the suspended matter outlet pipe 14; a liquid storage tank 142 is fixedly connected to the bottom of the suspended matter; a filtrate inlet pipe 35 is fixedly connected to the side wall of the liquid storage tank 142; the filtrate inlet pipe 35 is fixedly connected to the outer wall of the lower cylinder 3, and the filtrate inlet pipe 35 extends into the lower cylinder 3; during operation, the suspended matter obtained by filtering by the filter plate 23 and scraping by the scraper 421 enters the suspended matter outlet pipe 14 through the impact of tail water, the suspended matter is collected through the outlet pipe and sent for post-treatment, the tail water flowing downstream enters the liquid storage tank 142 through the filter port 141, and then enters the lower cylinder 3 through the filtrate inlet pipe 35 for treatment.

[0028] Working principle: tail water enters the upper cylinder 1 through the tail water inlet pipe 11, and the suspended matter is filtered by the filter plate 23 to prevent the suspended matter from consuming ozone and increasing the ozone consumption, and then enters the lower cylinder 3 through the liquid separation port 21 on the liquid separation plate 2. The liquid separation port 21 can effectively reuse the ozone escaping from the lower cylinder 3 by dispersing the tail water. At the same time, the rotating rod 4 is driven by the motor box 13. Since the limit groove 15 is slidably connected with the limit block 422, the rotating rod 4 drives the scraper 421 on the fixed frame 42 to scrape the suspended matter on the inner side of the filter plate 23 up and down, so as to prevent the filter plate 23 from being blocked due to excessive suspended matter. The tail water entering the lower cylinder 3 is gathered in the lower cylinder 3, and when it gathers to the set position, the tail water inlet pipe 11 is closed by controlling the liquid level sensor. The catalyst enters through the catalyst inlet pipe 31, and the rotating rod 4 drives the fan blades 43 to evenly mix the catalyst with the tail water in the lower cylinder 3. Ozone enters through the ozone inlet pipe 33, is diverted to the branch channel of the airway 36 through the air inlet, and finally enters the mixed liquid through the ozone outlet one-way valve 361 and reacts with the mixed liquid. The branch channel and the ozone outlet one-way valve 361 increase the contact area between ozone and the mixed liquid, and improve the reaction speed between ozone and the mixed liquid, thereby shortening the treatment time of the tail water.

[0029] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A distillation tower tail water treatment device, characterized in that: The invention comprises an upper cylinder (1), wherein a tailwater inlet pipe (11), a gas outlet pipe (12) and a motor box (13) are fixedly connected to the top of the upper cylinder (1); a suspended matter outlet pipe (14) is fixedly connected to the outer wall of the bottom of the upper cylinder (1); a liquid separation plate (2) is fixedly connected to the bottom of the upper cylinder (1); a group of liquid separation ports (21) are provided on the liquid separation plate (2); an inclined plate (22) is fixedly connected to the top of the liquid separation plate (2); a pair of filter plates (23) are installed on the side wall of the inclined plate (22); the filter plates (23) are fixedly connected to the top of the liquid separation plate (2) and the inner wall of the upper cylinder (1); the tailwater inlet pipe (11) extends between the pair of filter plates (23); and a scraping mechanism is provided on the inner side of the filter plate (23).

2. A distillation tower tail water treatment device according to claim 1, characterized in that: The scraping mechanism comprises a group of scrapers (421); the scrapers (421) are fitted with the inner side of the filter plate (23); the scrapers (421) are fixedly connected to the fixed frame (42); the bottom of the fixed frame (42) is adapted to the inclined plate (22); a pair of limit blocks (422) are fixedly connected to both sides of the fixed frame (42); a pair of limit grooves (15) are formed on the inner wall of the upper cylinder (1); the limit blocks (422) are slidably connected to the limit grooves (15); the motor box (13) drives a rotating rod (4); the rotating rod (4) is connected to the fixed frame (42) via a reciprocating thread (41); the rotating rod (4) passes through the top of the upper cylinder (1) and the liquid separation plate (2).

3. A distillation tower tail water treatment device according to claim 2, characterized in that: The bottom of the liquid separation plate (2) is fixedly connected to a lower cylinder (3); the top side wall of the lower cylinder (3) is fixedly connected to a catalyst inlet pipe (31); the rotating rod (4) is rotatably connected to the bottom of the lower cylinder (3); a group of fan blades (43) are fixedly connected to the rotating rod (4); the outer wall of the bottom of the lower cylinder (3) is fixedly connected to a tail water outlet pipe (32) and an ozone inlet pipe (33); the ozone inlet pipe (33) is connected to a drain pipe (34); and a water stop valve (341) is fixedly connected to the drain pipe (34).

4. A distillation tower tail water treatment device according to claim 3, characterized in that: An air passage (36) is provided at the bottom of the lower cylinder (3); the air passage (36) is provided with an air inlet and six branch passages, and the air inlet is communicated with the ozone inlet pipe (33); and a group of ozone outlet one-way valves (361) are fixedly connected to each of the branch passages.

5. A distillation tower tail water treatment device according to claim 4, characterized in that: The bottom of the suspended matter outlet pipe (14) is provided with a filter port (141); the bottom of the suspended matter outlet pipe (14) is fixedly connected to a liquid storage tank (142); the side wall of the liquid storage tank (142) is fixedly connected to a filtrate inlet pipe (35); the filtrate inlet pipe (35) is fixedly connected to the outer wall of the lower cylinder (3), and the filtrate inlet pipe (35) extends into the interior of the lower cylinder (3).

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