Waste water waste heat recycling equipment for printing and dyeing mill

Abstract

The utility model relates to the technical field of heat recovery, in particular to printing and dyeing mill waste water waste heat recycling equipment which comprises a waste water tank and a recycling tank, a filtering assembly is arranged on the right side of the waste water tank, and waste heat recycling assemblies are arranged in the recycling tank and on the right side of the recycling tank. The filtering assembly comprises a filtering box arranged on the right side of the waste water box, the left side of the filtering box is fixedly connected with the right side wall of the waste water box, a box door is arranged on the front face of the filtering box, a connecting pipe is fixedly connected to the bottom of the right side of the filtering box, and the end, away from the filtering box, of the connecting pipe penetrates through the left side wall of the recycling box. A coarse filter screen, a fine filter screen and an adsorption screen are sequentially arranged in an inner cavity of the filter box from top to bottom, limiting blocks are arranged on the left side and the right side of the inner cavity of the filter box at equal intervals, and limiting grooves are formed in the left side and the right side of the coarse filter screen. Impurities are prevented from being attached to the surface of the waste heat recovery assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery, in particular to a device for recovering and reusing waste heat from wastewater in a printing and dyeing factory. Background Art

[0002] Printing and dyeing factories discharge a large amount of printing and dyeing wastewater every day. The temperature of printing and dyeing wastewater is generally high. If it is discharged directly, a large amount of heat energy will be wasted. The recovery of this heat is of great significance for saving energy and protecting the environment.

[0003] The utility model patent application with publication number CN 217383934 U discloses a waste heat recovery system for printing and dyeing wastewater, which performs simple filtration and adsorption treatment of organic pollutants on the wastewater after heat recovery, which is beneficial to environmental protection;

[0004] There are a lot of impurities in the wastewater after the printing and dyeing process. The above solution is to first recover the heat from the wastewater and then filter it. However, this will cause the impurities in the wastewater to adhere to the surface of the components inside the waste heat recovery box, affecting the heat conduction effect and causing some waste heat to be wasted. Utility Model Content

[0005] The purpose of the utility model is to provide a device for recovering and reusing waste heat from wastewater in a printing and dyeing factory, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A device for recovering and reusing waste heat from wastewater in a printing and dyeing factory, comprising a wastewater tank and a recovery tank, wherein a filter assembly is provided on the right side of the wastewater tank, and a waste heat recovery assembly is provided inside and on the right side of the recovery tank;

[0008] The filter assembly includes a filter box arranged on the right side of the wastewater tank, the left side of the filter box is fixedly connected to the right side wall of the wastewater tank, the front of the filter box is provided with a box door, the bottom of the right side of the filter box is fixedly connected to a connecting pipe, and the end of the connecting pipe away from the filter box passes through the left side wall of the recovery box, the inner cavity of the filter box is provided with a coarse filter screen, a fine filter screen and an adsorption screen from top to bottom, and limiting blocks are equidistantly provided on the left and right sides of the inner cavity of the filter box, and limiting grooves are provided on the left and right sides of the coarse filter screen. The fine filter screen and the adsorption screen are the same, and the inner cavity of the filter box is provided with a water inlet cover, which is provided above the coarse filter screen. The inner cavity of the water inlet cover is evenly provided with guide plates, and the side walls of the guide plates are fixedly connected to the inner wall of the water inlet cover.

[0009] As a preferred solution of the present invention, the pore diameter of the coarse filter is larger than the pore diameter of the fine filter, the guide plates are all inclined, and the inclination of the guide plates gradually increases from the middle to both sides.

[0010] As a preferred solution of the present invention, the total number of the limit blocks is six, and the six limit blocks are arranged in groups of two each, and the three groups of limit blocks are slidably connected to the inner walls of the three groups of limit grooves respectively.

[0011] As a preferred solution of the present invention, the waste heat recovery component includes a heat pipe arranged at the top of the inner cavity of the recovery box, the top of the heat pipe is fixedly connected to the top of the inner cavity of the recovery box, and heat rods are equidistantly arranged at the bottom of the heat pipe, and the bottom ends of the heat rods are fixedly connected to heat conducting plates.

[0012] As a preferred solution of the present invention, a heat conduction branch pipe is passed through the top right side of the recovery box, the left end of the heat conduction branch pipe is fixedly connected to the right end of the heat conduction pipe, an air conduction pipe is provided below the heat conduction branch pipe, the left end of the air conduction pipe is communicated with the interior of the recovery box, and a thermal pipe is provided at the right ends of the heat conduction branch pipe and the air conduction pipe, and the thermal pipe is fixedly connected to the right ends of the heat conduction branch pipe and the air conduction pipe and is communicated with each other.

[0013] As a preferred solution of the present invention, a water pump is fixedly connected to the right side of the top of the wastewater tank, an extraction pipe is fixedly connected to the left side of the water pump, an end of the extraction pipe away from the water pump extends to the interior of the wastewater tank, a delivery pipe is fixedly connected to the right side of the water pump, an end of the delivery pipe away from the water pump extends to the interior of the filter box and is fixedly connected to the top of the water inlet cover, and a water inlet pipe is fixedly connected to the top left side of the wastewater tank.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the present invention, the wastewater is filtered before waste heat recovery by means of a coarse filter, a fine filter and an adsorption net, thereby preventing impurities from adhering to the surface of the waste heat recovery component and affecting the recovery work. The water inlet cover and guide plate can divert the wastewater so that the wastewater passes through the coarse filter evenly, avoiding blockage of the coarse filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the filter box of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the recycling box of the utility model.

[0019] In the figure: 1. Waste water tank; 2. Recovery tank; 3. Filter assembly; 301. Filter box; 302. Box door; 303. Connecting pipe; 304. Coarse filter; 305. Fine filter; 306. Adsorption net; 307. Limit block; 308. Limit groove; 309. Water inlet cover; 310. Guide plate; 4. Waste heat recovery assembly; 401. Heat pipe; 402. Heat rod; 403. Heat plate; 404. Heat branch pipe; 405. Air pipe; 406. Thermal pipe; 5. Water pump; 6. Extraction pipe; 7. Delivery pipe; 8. Water inlet pipe. DETAILED DESCRIPTION

[0020] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] For examples, see Figure 1 、 Figure 2 , the utility model provides a technical solution:

[0025] A device for recovering and reusing waste heat from wastewater in a printing and dyeing factory, comprising a wastewater tank 1 and a recovery tank 2, a filter assembly 3 being provided on the right side of the wastewater tank 1, a waste heat recovery assembly 4 being provided inside the recovery tank 2 and on the right side of the recovery tank 2, the filter assembly 3 comprising a filter box 301 provided on the right side of the wastewater tank 1, the left side of the filter box 301 being fixedly connected to the right side wall of the wastewater tank 1, a box door 302 being provided on the front side of the filter box 301, a connecting pipe 303 being fixedly connected to the bottom of the right side of the filter box 301, an end of the connecting pipe 303 away from the filter box 301 passing through the left side wall of the recovery tank 2, and passing through the filter box 301. The inner cavity of the filter box 301 is provided with a coarse filter screen 304, a fine filter screen 305 and an adsorption screen 306 from top to bottom. Limit blocks 307 are equidistantly provided on the left and right sides of the inner cavity of the filter box 301. Limit grooves 308 are provided on the left and right sides of the coarse filter screen 304. The fine filter screen 305 and the adsorption screen 306 are the same. The inner cavity of the filter box 301 is provided with a water inlet cover 309. The water inlet cover 309 is provided above the coarse filter screen 304. The inner cavity of the water inlet cover 309 is evenly provided with guide plates 310, and the side walls of the guide plates 310 are fixedly connected to the inner wall of the water inlet cover 309.

[0026] like Figure 2 As shown, the pore diameter of the coarse filter 304 is larger than the pore diameter of the fine filter 305, the guide plates 310 are all inclined, and the inclination of the guide plates 310 gradually increases from the middle to the two sides. The total number of limit blocks 307 is six, and the six limit blocks 307 are arranged in groups of two, and the three groups of limit blocks 307 are slidably connected to the inner walls of the three groups of limit grooves 308 respectively.

[0027] like Figure 1 、 Figure 3 As shown, the waste heat recovery component 4 includes a heat conducting pipe 401 arranged at the top of the inner cavity of the recovery box 2, the top of the heat conducting pipe 401 is fixedly connected to the top of the inner cavity of the recovery box 2, and heat conducting rods 402 are equidistantly arranged at the bottom of the heat conducting pipe 401. The bottom ends of the heat conducting rods 402 are fixedly connected to heat conducting plates 403. A heat conducting branch pipe 404 is passed through the top of the right side of the recovery box 2, and the left end of the heat conducting branch pipe 404 is fixedly connected to the right end of the heat conducting pipe 401. An air conducting pipe 405 is arranged below the heat conducting branch pipe 404, and the left end of the air conducting pipe 405 is communicated with the interior of the recovery box 2. 04 and the right end of the air guide pipe 405 is provided with a thermal pipe 406, the thermal pipe 406 is fixedly connected to the right end of the heat conduction branch pipe 404 and the air guide pipe 405 and is communicated with each other, the right side of the top of the wastewater tank 1 is fixedly connected to a water pump 5, the left side of the water pump 5 is fixedly connected to an extraction pipe 6, the end of the extraction pipe 6 away from the water pump 5 extends to the interior of the wastewater tank 1, the right side of the water pump 5 is fixedly connected to a delivery pipe 7, the end of the delivery pipe 7 away from the water pump 5 extends to the interior of the filter box 301 and is fixedly connected to the top of the water inlet cover 309, and the left top of the wastewater tank 1 is fixedly connected to a water inlet pipe 8.

[0028] The working process of the present utility model is as follows: when in use, the wastewater enters the interior of the filter box 301 under the action of the water pump 5, the extraction pipe 6 and the delivery pipe 7, the wastewater enters the interior of the water inlet cover 309, and is diverted by the guide plate 310, so that the wastewater passes through the coarse filter 304, the fine filter 305 and the adsorption net 306 evenly to avoid clogging of the filter screen. The coarse filter 304, the fine filter 305 and the adsorption net 306 filter and adsorb the wastewater, and the filtered wastewater enters the interior of the recovery box 2 through the connecting pipe 303. The heat conducting plate 403, the heat conducting rod 402 and the heat conducting pipe 401 conduct the heat in the wastewater, and conduct it to the heat conducting branch pipe 404 and the air conducting pipe 405, and is connected to the external thermal equipment through the thermal pipe 406 for recycling.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for recovering and reusing waste heat from wastewater in a printing and dyeing factory, comprising a wastewater tank (1) and a recovery tank (2), characterized in that: A filter assembly (3) is provided on the right side of the wastewater tank (1), and a waste heat recovery assembly (4) is provided inside the recovery tank (2) and on the right side of the recovery tank (2); The filter assembly (3) comprises a filter box (301) arranged on the right side of the wastewater tank (1), the left side of the filter box (301) being fixedly connected to the right side wall of the wastewater tank (1), the front of the filter box (301) being provided with a box door (302), the bottom of the right side of the filter box (301) being fixedly connected with a connecting pipe (303), the end of the connecting pipe (303) away from the filter box (301) passing through the left side wall of the recovery box (2), and the inner cavity of the filter box (301) being provided with a coarse filter screen (304), a fine filter screen (305) and an adsorption screen ( 306), limit blocks (307) are equidistantly provided on the left and right sides of the inner cavity of the filter box (301), limit slots (308) are provided on the left and right sides of the coarse filter screen (304), the fine filter screen (305) and the adsorption screen (306) are the same, the inner cavity of the filter box (301) is provided with a water inlet cover (309), the water inlet cover (309) is provided above the coarse filter screen (304), and the inner cavity of the water inlet cover (309) is evenly provided with guide plates (310), and the side walls of the guide plates (310) are fixedly connected to the inner wall of the water inlet cover (309).

2. The device for recovering and reusing waste heat from wastewater in a printing and dyeing factory according to claim 1, characterized in that: The filter hole diameter of the coarse filter (304) is larger than the filter hole diameter of the fine filter (305), and the guide plates (310) are all arranged at an angle, with the inclination of the guide plates (310) gradually increasing from the middle to both sides.

3. The device for recovering and reusing waste heat from wastewater in a printing and dyeing factory according to claim 1, characterized in that: The total number of the limiting blocks (307) is six, and each of the six limiting blocks (307) is arranged in a group of two, and the three groups of limiting blocks (307) are slidably connected to the inner walls of the three groups of limiting grooves (308).

4. The device for recovering and reusing waste heat from wastewater in a printing and dyeing factory according to claim 1, characterized in that: The waste heat recovery assembly (4) comprises a heat conducting pipe (401) arranged at the top of the inner cavity of the recovery box (2), the top of the heat conducting pipe (401) being fixedly connected to the top of the inner cavity of the recovery box (2), heat conducting rods (402) being equidistantly arranged at the bottom of the heat conducting pipe (401), and the bottom ends of the heat conducting rods (402) being fixedly connected to heat conducting plates (403).

5. The device for recovering and reusing waste heat from wastewater in a printing and dyeing factory according to claim 4, characterized in that: A heat conducting branch pipe (404) is passed through the top right side of the recovery box (2), the left end of the heat conducting branch pipe (404) is fixedly connected to the right end of the heat conducting pipe (401), an air conducting pipe (405) is provided below the heat conducting branch pipe (404), the left end of the air conducting pipe (405) is communicated with the interior of the recovery box (2), and a heat pipe (406) is provided at the right ends of the heat conducting branch pipe (404) and the air conducting pipe (405), the heat pipe (406) is fixedly connected to the right ends of the heat conducting branch pipe (404) and the air conducting pipe (405) and is communicated with each other.

6. The equipment for recovering and reusing waste heat from wastewater in a printing and dyeing factory according to claim 1, characterized in that: The right side of the top of the wastewater tank (1) is fixedly connected to a water pump (5), the left side of the water pump (5) is fixedly connected to an extraction pipe (6), the end of the extraction pipe (6) away from the water pump (5) extends to the interior of the wastewater tank (1), the right side of the water pump (5) is fixedly connected to a delivery pipe (7), the end of the delivery pipe (7) away from the water pump (5) extends to the interior of the filter box (301) and is fixedly connected to the top of the water inlet cover (309), and the top left side of the wastewater tank (1) is fixedly connected to a water inlet pipe (8).

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