Textile printing and dyeing sewage multi-stage treatment mechanism

Abstract

The invention discloses a textile printing and dyeing sewage multi-stage treatment mechanism which comprises a grating box and a filter box which are spliced with each other, the grating box and the filter box are respectively provided with an inlet and an outlet for sewage, two groups of grating assemblies which are arranged in a crossed manner are mounted in the grating box, and the grating assemblies are used for blocking suspended solids in the sewage. According to the invention, when sewage passes through the filter belt, the filter belt is a plurality of groups of strip-shaped lines, the filter belts in the two groups of grating assemblies form a crossed grid shape, and the transmission unit transmits the clamped filter belt, so that the contact position of the sewage and the filter belt is changed, and the filter belt is convenient to clean; the filter belts among the four groups of conveying units are in a tightened state, the filter belts on the outer sides of the four groups of conveying units are in a loose state, the filter belts in the tightened state are prevented from being deformed, suspended solids are effectively collected, and the suspended solids are conveniently separated from the filter belts through the filter belts in the loose state.

Description

Technical Field

[0001] The invention relates to the technical field of printing and dyeing wastewater treatment, in particular to a textile printing and dyeing wastewater multi-stage treatment mechanism. Background Art

[0002] Printing and dyeing wastewater, also known as printing and dyeing wastewater, mainly comes from the wastewater generated in the production process of printing and dyeing factories that use cotton, linen, chemical fibers and their blended products as the main raw materials. This type of wastewater has significant characteristics, including large water volume, high content of organic pollutants, strong alkalinity and large changes in water quality, so it is considered to be one of the more difficult industrial wastewaters to treat. Printing and dyeing wastewater contains a variety of harmful components, such as dyes, slurries, additives, oils, acid and alkali substances, fiber impurities, sand substances and inorganic salts. These components not only cause serious pollution to the environment, but may also cause harm to human health. The traditional printing and dyeing wastewater treatment process: wastewater → coarse screen → regulating tank → pre-coagulation sedimentation tank → hydrolysis acidification tank → contact oxidation tank → post-coagulation sedimentation tank → discharge. The sewage first passes through the screen to remove blocky solid suspended matter. After the screen is blocked by the suspended matter, the screen needs to be treated. At present, the screen is regularly inspected and repaired to promptly detect and repair equipment failures and damaged parts.

[0003] When cleaning the grille, use special tools, such as brushes, shovels, etc., to manually clean the impurities and scale on the grille, or use a high-pressure water gun or high-pressure cleaning equipment to wash the grille with high-pressure water. The high-pressure water flow can quickly wash away the impurities and scale on the grille, with high cleaning efficiency and without damaging the grille mesh. Although the above method can clean the grille, since the grille that blocks the suspended matter is in a grid shape, it is easy for the suspended matter to remain in the grid-shaped grille. The grille with a strong blocking effect generally has relatively small mesh, and the grille with a small mesh further increases the difficulty of cleaning. Even if a high-pressure water gun can be used for washing, the impact force on the grille is relatively large, which can easily cause the mesh of the grille to increase or be damaged. Summary of the invention

[0004] The object of the present invention is to provide a multi-stage wastewater treatment mechanism for textile printing and dyeing to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a multi-stage wastewater treatment mechanism for textile printing and dyeing, comprising a grid box and a filter box spliced ​​to each other, wherein the grid box and the filter box are respectively provided with an inlet and an outlet for wastewater, and two groups of cross-arranged grid components are installed in the grid box, and the grid components are used to block suspended matter in wastewater;

[0006] The grille assembly comprises external processing parts located at two sides of the grille box, and a filter belt for blocking suspended matter is transmitted between the external processing parts at the two sides.

[0007] Furthermore, the filter belt is formed by parallel splicing of a plurality of strip-shaped lines, and the filter belts in the two groups of grille components are cross-arranged to form a grid shape.

[0008] Furthermore, the external processing part includes four groups of support units, the four groups of support units are used to support the filter belt, one group of support units includes two support shafts, the two support shafts are rotatably installed inside the grille box, the two support shafts are distributed up and down, and the filter belt passes through the two support shafts in an "S" shape, so that one side of the filter belt is high and the other side is low.

[0009] Furthermore, the external processing part also includes four groups of transmission units, the four groups of transmission units are used to clamp the filter belt, one group of transmission units includes two transmission shafts, the two transmission shafts are rotatably installed on the inner side of the grille box, the two transmission shafts clamp the filter belt, gears are fixed at the ends of the two transmission shafts, the two gears are meshed with each other, and when one of the transmission shafts rotates, the clamped filter belt is transmitted.

[0010] Furthermore, both sides of the grille box have through openings, and the four groups of transmission units separate the filter belt into two parts, an inner part and an outer part. The filter belt inside the grille box is stretched straight, and the filter belt outside the grille box is loosely set.

[0011] Furthermore, the two transmission units located on one side have a transmission belt, and the transmission belt is installed on two transmission shafts that are farthest apart from the two transmission units, and is used to drive the two transmission units to clamp the filter belt and perform transmission movement.

[0012] Furthermore, the external treatment part also includes two supporting sheet metals installed on the grille box front and back, a supporting sleeve roller is rotatably installed between the two supporting sheet metals, the end of the filter belt is sleeved on the supporting sleeve roller, and a collecting sleeve is fixed between the two supporting sheet metals, the collecting sleeve is located on the outside of the supporting sleeve roller, one side of the collecting sleeve has an opening, and the other side has an outer opening, the opening on one side is used to cooperate with the supporting sleeve roller, and the outer opening on the other side is used to centrally process the suspended matter;

[0013] An air blowing slit is provided on the outside of the support sleeve roller, and the air blowing slit is used to spray the gas inside the support sleeve roller toward the filter belt to separate the suspended matter. The inside of the support sleeve roller is hollow, and one end of the support sleeve roller penetrates the supporting sheet metal.

[0014] Furthermore, an inner sleeve is provided inside the supporting sleeve roller, the outer wall of the inner sleeve is in contact with the inner wall of the supporting sleeve roller, a side opening is opened on one side of the inner sleeve, the side opening faces the collecting sleeve, one end of the inner sleeve passes through the supporting sleeve roller, and an end plate fixed to the through end is fixed to the supporting sheet metal, the end plate is used to prevent the inner sleeve from rotating, and one end of the inner sleeve passing through the supporting sleeve roller is used to be connected to an air pump.

[0015] Furthermore, a filter screen for filtering sewage is installed in the filter box.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] 1. When sewage passes through the filter belt, since the filter belt is a group of strip-shaped lines, the filter belts in the two groups of grid assemblies form a cross grid. The transmission unit transmits the clamped filter belt to change the contact position between the sewage and the filter belt, making it easier to clean the filter belt.

[0018] 2. The filter belts between the four transmission units are in a taut state, while the filter belts outside the four transmission units are in a loose state. The taut filter belts avoid deformation and effectively collect suspended matter, while the loose filter belts facilitate separation of suspended matter from the filter belts.

[0019] 3. The gas moves outward from the side port and the blowing slit, impacting the filter belt in and out, separating the suspended matter from the filter belt. The filter belt is in a loose state, and the extrusion strength between the filter belt and the supporting sleeve roller is low, which can effectively separate the suspended matter remaining on the filter belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of a half-section structure of a grille box of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross structure of two groups of grille components of the present invention;

[0024] Figure 4 It is a schematic diagram of the cross structure of the filter belt of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the external processing part of the present invention;

[0026] Figure 6 The present invention Figure 5 A is a schematic diagram of the partially enlarged structure of the middle part;

[0027] Figure 7 It is a schematic diagram of the supporting sleeve roller and its end structure of the present invention;

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the support sleeve roller of the present invention;

[0029] Fig. 9 It is a schematic diagram of the planar structure of a group of grille components of the present invention.

[0030] In the figure: 1. grille box; 11. through-hole; 2. grille assembly; 21. filter belt; 22. external processing unit; 23. support unit; 231. support shaft; 24. transmission unit; 241. transmission shaft; 242. gear; 243. transmission belt; 25. support sheet metal; 26. support sleeve roller; 261. air blowing slit; 262. inner sleeve; 263. side port; 264. end plate; 27. collecting sleeve; 271. external port; 3. filter box; 31. filter net. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 9 The present invention provides a technical solution: flushing the grille. Although the grille can be cleaned, the grille that blocks the suspended matter is in a grid shape, which makes it easy for the suspended matter to remain in the grid-shaped grille. The smaller the mesh, the more difficult it is to clean the grille. However, the smaller the mesh, the better the filtering effect. Based on this, it is necessary to improve the grille. A multi-stage wastewater treatment mechanism for textile printing and dyeing is proposed, such as Figure 1 and Figure 2 As shown, it includes a grille box 1 and a filter box 3 spliced ​​to each other, the grille box 1 and the filter box 3 are respectively provided with an inlet and an outlet for sewage, two groups of cross-arranged grille components 2 are installed in the grille box 1, and the grille components 2 are used to block suspended matter in the sewage, and the sewage moves in and out from the inlet and outlet of the grille box 1 and the filter box 3, and the moving sewage passes through the two groups of cross-arranged grille components 2, and the suspended matter in the sewage is filtered through the grille components 2;

[0033] like Figure 2As shown, the suspended matter needs to be filtered, but it is also necessary to facilitate the cleaning of the filtering equipment. Based on this, the grille assembly 2 includes an external processing part 22 located on both sides of the grille box 1, and a filter belt 21 for blocking suspended matter is transmitted between the external processing parts 22 on both sides. The filter belt 21 can be transmitted to change the filtering position to keep the sewage passing through the filter belt 21, thereby achieving uninterrupted filtration and completing the sewage treatment.

[0034] like Figure 1 and Figure 4 The shape of the filter belt 21 is shown. Figure 2 and Figure 3 In order to make the structure clearer, the filter belt 21 is materialized. The filter belt 21 is formed by a plurality of groups of strips connected in parallel. The filter belts 21 in the two groups of grille components 2 are cross-arranged to form a grid. The grid can filter the sewage, and the suspended matter remaining in the crossed filter belts 21 is transmitted, thereby changing the filtering position of the filter belt 21 and maintaining the filtering effect of the filter belt 21.

[0035] like Figure 5 and Figure 6 As shown, during the filtering process of the filter belt 21, the filter belt 21 cannot be kept in a horizontal state at all positions, and it is necessary to prevent the sewage from moving outward in the horizontal direction along the filter belt 21. The external treatment part 22 includes four groups of support units 23, and the four groups of support units 23 are used to support the filter belt 21. One group of support units 23 includes two support shafts 231, and the two support shafts 231 are rotatably installed inside the grille box 1. The two support shafts 231 are distributed up and down, and the filter belt 21 passes through the two support shafts 231 in an "S" shape, so that the filter belt 21 is high on one side and low on the other side. The four groups of support units 23 make the filter belt 21 high on the outside and low on the inside, which can prevent the sewage from moving outward horizontally along the filter belt 21.

[0036] like Figure 5 and Figure 6 As shown, the filter belt 21 needs to be transmitted so that the filter belt 21 moves, the position of filtering sewage is changed, and the filter belt 21 is kept filtering. The external processing part 22 also includes four groups of transmission units 24. The four groups of transmission units 24 are used to clamp the filter belt 21. One group of transmission units 24 includes two transmission shafts 241. The two transmission shafts 241 are rotatably installed on the inner side of the grille box 1. The two transmission shafts 241 clamp the filter belt 21. Gears 242 are fixed at the ends of the two transmission shafts 241. The two gears 242 are meshed with each other. When one transmission shaft 241 rotates, the clamped filter belt 21 is transmitted. Two groups of transmission units 24 on one side, one group transmits the filter belt 21 outward, and the other group transmits the filter belt 21 inward, so that the filter belt 21 circulates and changes the filtering position of the filter belt 21.

[0037] like Figure 5 and Figure 6 As shown, both sides of the grille box 1 have through openings 11, and four groups of transmission units 24 separate the filter belt 21 into two parts, the filter belt 21 inside the grille box 1 is stretched straight, and the filter belt 21 outside the grille box 1 is loosely set. The stretched part of the filter belt 21 avoids deformation during filtering, while the loose part of the filter belt 21 is convenient for cleaning the residual suspended matter.

[0038] like Figure 6 As shown, the two groups of transmission units 24 located on one side have a transmission belt 243, and the transmission belt 243 is installed on the two transmission shafts 241 that are farthest apart from the two groups of transmission units 24, and is used to drive the two groups of transmission units 24 to clamp the filter belt 21 and perform transmission movement. The transmission belt 243 is used to drive the two groups of transmission units 24 on one side to rotate the transmission units 24, and the two groups of transmission units 24 on one side have the same rotation frequency.

[0039] like Figure 7 As shown, in order to collect the suspended matter on the filter belt 21, the external processing part 22 also includes two supporting sheet metals 25 installed on the grille box 1 in front and back, a supporting sleeve roller 26 is rotatably installed between the two supporting sheet metals 25, the end of the filter belt 21 is sleeved on the supporting sleeve roller 26, and a collecting sleeve 27 is fixed between the two supporting sheet metals 25. The collecting sleeve 27 is located on the outside of the supporting sleeve roller 26. The collecting sleeve 27 has an opening on one side and an outer opening 271 on the other side. The opening on one side is used to cooperate with the supporting sleeve roller 26, and the outer opening 271 on the other side is used to centrally process the suspended matter. The outer side of the outer opening 271 is used to sleeve a net bag, so as to collect the suspended matter into the net bag.

[0040] An air blowing slit 261 is provided on the outside of the support roller 26 for spraying the gas inside the support roller 26 toward the filter belt 21 to separate the suspended matter. The support roller 26 is hollow inside, and one end of the support roller 26 passes through the support sheet metal 25 .

[0041] like Figure 8 As shown, the interior of the support sleeve roller 26 is provided with an inner sleeve 262, the outer wall of the inner sleeve 262 contacts the inner wall of the support sleeve roller 26, a side opening 263 is opened on one side of the inner sleeve 262, the side opening 263 faces the collecting sleeve 27, one end of the inner sleeve 262 passes through the support sleeve roller 26, and an end plate 264 fixed to the supporting sheet metal 25 is fixed to the through end, the end plate 264 is used to prevent the inner sleeve 262 from rotating, and one end of the inner sleeve 262 passes through the support sleeve roller 26 for connecting to an air pump, gas is input into the inner sleeve 262, the gas moves outward from the side opening 263, and moves outward from the blowing slit 261, generating a force against the filter belt 21, so that the suspended matter on the filter belt 21 is separated from the filter belt 21, and because the filter belt 21 is linear, it is convenient to separate the suspended matter.

[0042] like Fig. 9 As shown, a filter screen 31 for filtering sewage is installed in the filter box 3. After being filtered by the grille assembly 2, the sewage will be further filtered by the filter screen 31, so that the sewage can be further processed.

[0043] Working principle of the present invention: First, the sewage moves downward from the upper end of the grille box 1 and passes through two sets of crossed grille components 2. When the sewage passes through the filter belt 21, since the filter belt 21 is a plurality of strips, the filter belts 21 in the two sets of grille components 2 are Figure 4 As shown, a cross grid is formed, and the sewage moving from top to bottom passes through the cross filter belts 21, so that the suspended matter is blocked. When the transmission unit 24 is driven to rotate by the motor, the clamped filter belt 21 is transmitted, and the contact position between the sewage and the filter belt 21 is changed. The original filtering position of the filter belt 21 is transmitted to the outside. Because it is in a linear shape, it is convenient to clean the filter belt 21.

[0044] Secondly, when the filter belt 21 with suspended matter is transmitted to the outside of the grille box 1 by the transmission unit 24, since the filter belt 21 is clamped by the four groups of transmission units 24, the transmission unit 24 rotates to realize the transmission of the filter belt 21. Then, the filter belts 21 between the four groups of transmission units 24 can be in a taut state, and the filter belts 21 outside the four groups of transmission units 24 are in a loose state. The taut filter belt 21 avoids deformation and effectively collects suspended matter. The loose part of the filter belt 21 is convenient for separating the suspended matter from the filter belt 21, which is easy to operate, and realizes uninterrupted sewage filtration and uninterrupted cleaning. It should be noted that a group of transmission units 24 includes two transmission shafts 241, and the two transmission shafts 241 rotate in opposite directions. While transmitting the filter belt 21, the suspended matter is effectively squeezed to reduce the moisture in the suspended matter, which is convenient for reducing the weight after collection.

[0045] It should also be noted that the filter belt 21 transmitted to the outside of the grille box 1 is supported by the support sleeve roller 26, and the support sleeve roller 26 has an air blowing slit 261 on the outside and an inner sleeve 262 inside. Gas is injected into the inner sleeve 262 by an air pump, so that the gas moves outward from the side port 263 and the air blowing slit 261, impacting the filter belt 21 in and out, and separating the suspended matter from the filter belt 21. In addition, since the filter belt 21 is in a loose state, the extrusion strength between the filter belt 21 and the support sleeve roller 26 is low, which can effectively separate the suspended matter remaining on the filter belt 21.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-stage wastewater treatment mechanism for textile printing and dyeing, comprising a grid box (1) and a filter box (3) spliced ​​to each other, wherein the grid box (1) and the filter box (3) are respectively provided with an inlet and an outlet for wastewater, characterized in that: Two groups of cross-arranged grid components (2) are installed in the grid box (1), and the grid components (2) are used to block suspended matter in sewage; The grille assembly (2) comprises external processing parts (22) located on both sides of the grille box (1), and a filter belt (21) for blocking suspended matter is transmitted between the external processing parts (22) on both sides.

2. The multi-stage wastewater treatment mechanism for textile printing and dyeing according to claim 1 is characterized in that: The filter belt (21) is formed by splicing a plurality of groups of strip-shaped lines in parallel, and the filter belts (21) in the two groups of grille components (2) are cross-arranged to form a grid shape.

3. The multi-stage wastewater treatment mechanism for textile printing and dyeing according to claim 1 is characterized in that: The external processing part (22) comprises four groups of support units (23), the four groups of support units (23) are used to support the filter belt (21), one group of support units (23) comprises two support shafts (231), the two support shafts (231) are rotatably mounted inside the grille box (1), the two support shafts (231) are distributed up and down, and the filter belt (21) passes through the two support shafts (231) in an "S" shape, so that the filter belt (21) is high on one side and low on the other side.

4. The multi-stage wastewater treatment mechanism for textile printing and dyeing according to claim 1 is characterized in that: The external processing part (22) further comprises four groups of transmission units (24), the four groups of transmission units (24) being used to clamp the filter belt (21), one group of transmission units (24) comprising two transmission shafts (241), the two transmission shafts (241) being rotatably mounted on the inner side of the grille box (1), the two transmission shafts (241) clamping the filter belt (21), gears (242) being fixed at the ends of the two transmission shafts (241), the two gears (242) being meshed with each other, and when one of the transmission shafts (241) is rotated, the clamped filter belt (21) is transmitted.

5. The multi-stage wastewater treatment mechanism for textile printing and dyeing according to claim 4 is characterized in that: Both sides of the grille box (1) have through openings (11), and the four groups of transmission units (24) separate the filter belt (21) into two parts, the inner and outer parts. The filter belt (21) located inside the grille box (1) is stretched straight, and the filter belt (21) located outside the grille box (1) is loosely arranged.

6. The multi-stage wastewater treatment mechanism for textile printing and dyeing according to claim 4 is characterized by: The two groups of transmission units (24) located on one side have a transmission belt (243), and the transmission belt (243) is installed on the two transmission shafts (241) that are farthest apart from each other in the two groups of transmission units (24), and is used to drive the two groups of transmission units (24) to clamp the filter belt (21) and perform transmission movement.

7. The multi-stage wastewater treatment mechanism for textile printing and dyeing according to claim 1 is characterized by: The external treatment part (22) further comprises two supporting sheet metals (25) mounted on the grille box (1) front and rear, a supporting sleeve roller (26) being rotatably mounted between the two supporting sheet metals (25), the end of the filter belt (21) being sleeved on the supporting sleeve roller (26), a collecting sleeve (27) being fixed between the two supporting sheet metals (25), the collecting sleeve (27) being located on the outside of the supporting sleeve roller (26), the collecting sleeve (27) having an opening on one side and an outer opening (271) on the other side, the opening on one side being used for cooperating with the supporting sleeve roller (26), and the outer opening (271) on the other side being used for centralized treatment of suspended matter; The support sleeve roller (26) is provided with an air blowing slit (261) on the outside thereof, and the air blowing slit (261) is used to spray the gas inside the support sleeve roller (26) toward the filter belt (21) to separate the suspended matter. The inside of the support sleeve roller (26) is hollow, and one end of the support sleeve roller (26) penetrates the support sheet metal (25).

8. The multi-stage wastewater treatment mechanism for textile printing and dyeing according to claim 7 is characterized by: The support sleeve roller (26) is internally sleeved with an inner sleeve (262), the outer wall of the inner sleeve (262) contacts the inner wall of the support sleeve roller (26), a side opening (263) is opened on one side of the inner sleeve (262), and the side opening (263) faces the collecting sleeve (27), one end of the inner sleeve (262) passes through the support sleeve roller (26), and an end plate (264) fixed to the supporting sheet metal (25) is fixed to the through end, and the end plate (264) is used to prevent the inner sleeve (262) from rotating, and one end of the inner sleeve (262) passing through the support sleeve roller (26) is used to be connected to an air pump.

9. The multi-stage wastewater treatment mechanism for textile printing and dyeing according to claim 1 is characterized by: A filter screen (31) for filtering sewage is installed in the filter box (3).

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