Wastewater treatment process for synthetic perfume preparation

Abstract

The wastewater treatment process comprises an air floatation box body, a dissolved air tank is installed at one end of the air floatation box body, a slag discharging chamber is installed at the other end of the inner side of the air floatation box body, a slag discharging pipe opening is formed in one side of the slag discharging chamber, a scraping assembly is installed on the inner side of the slag discharging chamber, and the scraping assembly is installed on the inner side of the air floatation box body. The scraping assembly comprises a slag scraping motor; the slag scraping motor is mounted on the other side of the slag discharging chamber and is positioned on the front surface of the air floatation box body; by arranging the cleaning assembly with the scraping structure, when the device is used for treating waste water generated by spice processing, the cleaning assembly for reciprocating scraping is arranged in the residue discharging chamber, and when dross falls into the residue discharging chamber, the dross can be discharged and recycled in time under the action of the cleaning assembly, so that the dross is prevented from being accumulated in the residue discharging chamber; and meanwhile, the deslagging chamber is convenient to clean, the floating slag is prevented from caking in the deslagging chamber, and the practicability and functionality of the device are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a wastewater treatment process for preparing synthetic fragrances. Background Art

[0002] Wastewater from spice preparation mainly comes from various links of flavor and fragrance production, including process drainage, kettle washing water, ground washing water, packaging container washing water and equipment washing water. The spice preparation wastewater treatment process aims to remove organic matter, suspended matter, grease, acid and alkali and other pollutants in the wastewater to meet environmental protection requirements and not cause pollution to the environment. In order to obtain better treatment effects, spice preparation wastewater treatment usually adopts a combined process. In addition, for organic matter that is difficult to degrade or wastewater that needs to meet higher emission standards, deep treatment is also required, such as sand filtration, carbon filtration, membrane separation, etc.

[0003] The patent with application number 202120952108.6 discloses a complete set of equipment for treating spice wastewater. This application is based on an innovative wastewater treatment process and designs more efficient and reasonable equipment. By designing an air flotation device in the pretreatment step, a large amount of water-insoluble products in the spice wastewater can be recycled and reused, which increases economic benefits and is also beneficial to the next step of wastewater treatment. The complete set of wastewater treatment equipment adopts a multi-stage oxidation catalytic device in the deep treatment equipment, which is beneficial to biochemical treatment; combined with the above application and compared with the existing treatment process, in the existing process treatment process, when the wastewater is flotated by an air flotation machine to remove impurities in the wastewater, when the waste enters the slag discharge chamber, it is easy to accumulate and cannot be discharged from the slag discharge chamber in time, which affects the collection and treatment of the waste slag and the practicability of the device. For this reason, we propose a wastewater treatment process for the preparation of synthetic spices. Summary of the invention

[0004] The object of the present invention is to provide a wastewater treatment process for the preparation of synthetic fragrances, so as to solve the problem proposed in the above background technology that, compared with the existing treatment process, in the existing process, when the wastewater is flotated by an air flotation machine to remove impurities in the wastewater, when the waste enters the slag discharge chamber, it is easy to accumulate and cannot be discharged from the slag discharge chamber in time, thereby affecting the collection and treatment of the waste slag and affecting the practicability of the device.

[0005] To achieve the above object, the present invention provides the following technical solution: a wastewater treatment process for preparing synthetic fragrances, specifically comprising the following steps; S1. Sedimentation: passing the wastewater into a sedimentation tank, and using gravity to precipitate the suspended solids in the wastewater, thereby separating the clear liquid from the suspended solids in the wastewater; S2, flotation, by introducing air or nitrogen and other gases into the wastewater, the suspended matter in the wastewater is attached to the bubbles and floats to the water surface, thereby being separated from the wastewater. The wastewater enters through the water inlet at one end of the flotation box, and then the dissolved water in the dissolved gas tank enters, and the impurities and fine suspended matter in the gas float up through the dissolved gas, and then the scum is scraped off by the scraper plate and falls into the slag discharge chamber, and then the scum in the slag discharge chamber is scraped off by the scraper motor and accelerated to be discharged from the slag discharge pipe; S3, biological filtration, the wastewater after S2 is passed through the biological filler filter tank again. Through the action of the biofilm in the biological filler, the organic pollutants in the sewage are degraded. The pollutants can be more completely degraded into carbon dioxide, water and nitrogen, thus completing the filtration.

[0006] Specifically, it includes an air flotation box, one end of the air flotation box is equipped with an air dissolving tank, the other end of the inner side of the air flotation box is equipped with a slag discharge chamber, one side of the slag discharge chamber is equipped with a slag discharge pipe mouth, the inner side of the slag discharge chamber is equipped with a scraping assembly, the scraping assembly includes a scraping motor, the scraping motor is installed on the other side of the slag discharge chamber and is located on the front surface of the air flotation box, the inner side of the slag discharge chamber is located at one end of the scraping motor with a reciprocating screw rod installed, the reciprocating screw rod is equipped with a scraper assembly for scraping slag, the scraper assembly includes a lifting mounting frame with limited lifting and a lifting main board for scraping, a screw sleeve is installed on the top of the lifting mounting frame, the lifting mounting frame reciprocates on the reciprocating screw rod through a guide limit groove, and the lifting main board is limitedly installed on the bottom of the lifting mounting frame.

[0007] Preferably, a limit rod is installed on the top of the lifting main board, and spring rods are symmetrically installed on both sides of the top of the lifting main board. The limit rod and the spring rod are limited in the lifting installation frame, and one end of the spring rod is located in the lifting installation frame and a lifting spring is installed.

[0008] Preferably, guide limit rods are provided on both sides of the lifting main board, a lifting scraper seat is installed at the bottom of the lifting main board, a wear-resistant scraper plate is provided at the bottom of the lifting scraper seat, guide limit grooves are opened on the side walls of both sides of the slag discharge chamber, a guide limit plate is installed at one end of the guide limit groove, and the lifting main board is slidably limited in the guide limit groove by the guide limit rod.

[0009] Preferably, when the scraping motor drives the reciprocating screw to rotate, it can drive the screw sleeve, the lifting mounting frame and the lifting main board to move back and forth in the slag discharge chamber for scraping.

[0010] Preferably, two upper and lower slideways are provided on the guide limit groove, and the lifting main board moves in the slideway at the bottom of the guide limit groove through the limiting action of the guide limit plate when scraping scum, and the lifting main board moves in the slide at the top of the guide limit groove when resetting.

[0011] Preferably, a torsion spring is installed at one end of the guide limit plate, and the guide limit plate is installed by rotation and limiting through the torsion spring.

[0012] Preferably, a T-shaped lifting rod is installed at the bottom of the lifting main board, a lifting seat is installed at the inner top of the lifting scraper seat, a return spring is also installed at the inner bottom of the lifting seat, and the lifting main board and the lifting scraper seat are also limited by the lifting rod and the lifting seat.

[0013] Preferably, the lifting scraper seat is a concave structure, a protrusion is provided at the bottom of the lifting main board, and the lifting scraper seat is also slidably installed with the lifting main board through the protrusion.

[0014] Preferably, a maintenance and observation platform is installed on the front surface of the flotation box, a reaction chamber is provided at one end inside the flotation box, an overflow water chamber is provided at the other end inside the flotation box located at the slag discharge chamber, a slag removal motor is installed at the other end of the top of the flotation box, two slag scraping seats are installed on the top of the flotation box, a slag scraping chain is installed between the two slag scraping seats, and a scraping plate for scraping slag is provided on the scraping chain, a transmission belt is installed between the reciprocating screw and one of the scraping seats, and the scraping plate is driven to rotate by the slag removal motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting the cleaning component with the scraping structure, when the device is used to treat wastewater generated by spice processing, the wastewater is subjected to dissolved air flotation, and the generated scum is scraped into the slag discharge chamber by the scraping plate. A cleaning component for reciprocating scraping is arranged in the slag discharge chamber. When scum falls into the slag discharge chamber, the scum can be discharged and recovered in time through the action of the cleaning component, so as to avoid the accumulation of scum in the slag discharge chamber, thereby facilitating the treatment and cleaning the slag discharge chamber, and avoiding the scum from agglomerating in the slag discharge chamber, thereby improving the practicality and functionality of the device. In addition, during use, since the lifting mainboard is lifted and lowered back and forth during the cleaning process, the wear-resistant scraper will be in contact with and wear against the inner wall of the slag discharge chamber for a long time. By arranging an elastic compensation component at the bottom of the lifting mainboard, the lifting mainboard can be elastically lifted and lowered during the scraping process to avoid the bottom of the wear-resistant scraper being in contact with and wear against the inner wall of the slag discharge chamber after long-term use. This structure can play a compensatory role, ensuring that the wear-resistant scraper can better scrape and discharge slag while improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the installation structure of the lifting installation frame of the present invention; Figure 3 It is a schematic diagram of the structure on both sides of the slag chamber of the present invention; Figure 4 It is a partial perspective structural diagram of the lifting mainboard of the present invention; In the figure: 100, air flotation box; 101, reaction chamber; 102, slag discharge chamber; 103, slag discharge pipe; 104, overflow water chamber; 105, maintenance observation platform; 106, slag removal motor; 107, slag scraper swivel seat; 108, slag scraper chain; 109, slag scraper plate; 110, dissolved gas tank; 200, reciprocating screw rod; 201, screw rod sleeve; 202, lifting mounting frame; 203, lifting main board; 204, spring rod; 205, lifting spring; 206, limit rod; 207, lifting scraper seat; 208, wear-resistant scraper; 209, guide limit rod; 210, guide limit groove; 211, guide limit plate; 212, scraper motor; 300, lifting pole; 301, lifting seat; 302, reset spring. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The present invention provides a technical solution: the wastewater treatment process for the preparation of fragrances is a complex and diverse process. It is necessary to select a suitable treatment method or a combination process according to the specific water quality, water volume and discharge standard of the wastewater. In practical applications, a combination process is often used, that is, physical treatment, chemical treatment and biological treatment are combined. A wastewater treatment process for the preparation of synthetic fragrances includes an air flotation box 100, one end of which is equipped with an air dissolving tank 110, and the inside of the air flotation box 100 is provided with an air dissolving tank 110. A slag discharge chamber 102 is welded and fixed at the other end of the side, a slag discharge nozzle 103 is welded and installed on one side of the slag discharge chamber 102, a scraping assembly is installed on the inner side of the slag discharge chamber 102, and the scraping assembly includes a scraping motor 212, the scraping motor 212 is installed on the other side of the slag discharge chamber 102 and is located on the front surface of the air flotation box 100, and a reciprocating screw 200 is installed on the inner side of the slag discharge chamber 102 at one end of the scraping motor 212, and a scraping assembly for scraping slag is installed on the reciprocating screw 200, and the scraping assembly includes a limit The lifting and lowering mounting frame 202 and the lifting main board 203 for scraping materials, the top of the lifting and lowering mounting frame 202 is fixedly installed with a screw sleeve 201, the lifting and lowering mounting frame 202 reciprocates on the reciprocating screw 200 through the guide limit groove 210, and the lifting main board 203 is limitedly installed at the bottom of the lifting and lowering mounting frame 202. In the wastewater treatment process of the spice production and processing, when the air flotation machine involved in the process of the application is used, the wastewater is passed into the air flotation box 100 and enters the air dissolving tank 110. After the dissolved air water reacts, the generated scum floats on the top of the liquid, and then the scum removal motor 106 works to drive the scraper chain 108 on the scraper rotating seat 107 to rotate. When the scraper chain 108 rotates, it drives the scraper plate 109 to scrape off the scum floating on the top of the liquid. After the scum is scraped off, it falls into the scum discharge chamber 102 and is discharged through the scum discharge pipe port 103 for recycling. At the same time, the treated water passes into the overflow water cavity 104 and is discharged by overflow, thereby completing the flotation filtration treatment of the spice wastewater.

[0019] Specifically, a limit rod 206 is fixedly installed on the top of the lifting main board 203, and spring rods 204 are symmetrically installed on both sides of the top of the lifting main board 203. The limit rod 206 and the spring rod 204 are passed through and limited in the lifting mounting frame 202, and one end of the spring rod 204 is located in the lifting mounting frame 202 and a lifting spring 205 is installed. Guide limit rods 209 are arranged on both sides of the lifting main board 203, and a lifting scraper seat 207 is installed at the bottom of the lifting main board 203. A wear-resistant scraper plate 208 is arranged at the bottom of the lifting scraper seat 207. Guide limit grooves 210 are opened on the side walls of the slag discharge chamber 102, and a guide limit plate 211 is installed at one end of the guide limit groove 210. The lifting main board 203 is moved in the guide limit by the guide limit rods 209. The scraper motor 212 drives the reciprocating screw rod 200 to rotate, which can drive the screw rod sleeve 201, the lifting mounting frame 202 and the lifting main board 203 to reciprocate in the slag discharge chamber 102 for scraping. During use, when the slag is scraped into the slag discharge chamber 102, in order to discharge the slag in time, the scraper motor 212 drives the reciprocating screw rod 200 to rotate. When the reciprocating screw rod 200 rotates, the screw rod sleeve 201 is driven to move back and forth through the reciprocating action, and when the guide limit groove 210 moves, it drives the lifting mounting frame 202 and the lifting main board 203 installed at the bottom to reciprocate. When the lifting main board 203 moves, the inner wall of the slag discharge chamber 102 is scraped by the wear-resistant scraper 208 in contact with the bottom, and the lifting main board 203 When moving, the guide limit rods 209 at both ends are limited in the guide limit groove 210, and when the lifting main board 203 is scraping, the lifting main board 203 moves in the slideway at the bottom of the guide limit groove 210 through the guide limit rods 209, thereby ensuring that the wear-resistant scraper 208 is in contact with the bottom of the slag discharge chamber 102, and when the lifting main board 203 moves to the end, through the elastic action of the spring rod 204 and the lifting spring 205, when it reaches one end of the guide limit groove 210, the lifting main board 203 is pulled up to a certain height, so that the lifting main board 203 slides on the top of the guide limit groove 210 when moving back, so as to prevent the lifting main board 203 from scraping the slag that is continuously scraped into the slag discharge chamber 102 back. After moving to the other end, the guide limit plate 211 is squeezed open, and the guide limit plate 211 is rotationally connected by the torsion spring. When the lifting main board 203 squeezes the guide limit plate 211 open, the guide limit plate 211 is reset due to the action of the torsion spring when continuing to move. When the lifting main board 203 moves to the other end and then moves back, the lifting main board 203 moves along the slide at the bottom of the guide limit groove 210 to scrape off the scum through the action of the guide limit groove 210. The lifting main board 203 can be ensured to move in the slide at the bottom of the guide limit groove 210 when scraping, and to move in the slide at the top of the guide limit groove 210 when moving back, thereby better scraping off the scum and improving the practicality of the device.

[0020] Specifically, two upper and lower slideways are provided on the guide limit groove 210, and the lifting main board 203 moves in the slideway at the bottom of the guide limit groove 210 through the limiting action of the guide limit plate 211 when scraping off the scum, and the lifting main board 203 moves in the sliding at the top of the guide limit groove 210 when resetting, so as to avoid affecting the removal of scum when the lifting main board 203 reciprocates. A torsion spring is installed at one end of the guide limit plate 211, and the guide limit plate 211 is installed by rotation and limiting the torsion spring, so as to better ensure the installation stability of the guide limit plate 211. When the guide limit plate 211 is pushed, its better resetting can be ensured by the action of the torsion spring.

[0021] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a technical solution: a wastewater treatment process for the preparation of synthetic fragrances, a T-shaped lifting rod 300 is fixedly installed at the bottom of the lifting main board 203, a lifting seat 301 is fixedly installed on the inner top of the lifting scraper seat 207, and a return spring 302 is also installed on the inner bottom of the lifting seat 301. The lifting main board 203 and the lifting scraper seat 207 are also limited by the lifting rod 300 and the lifting seat 301. In the reciprocating movement of the lifting main board 203, in order to ensure the wear-resistant scraper at the bottom of the lifting main board 203 The plate 208 contacts the inner wall of the slag discharge chamber 102 during the scraping process. A lifting scraper seat 207 is installed at the bottom of the lifting main board 203. The lifting main board 203 and the lifting scraper seat 207 are elastically installed through the lifting vertical rod 300 and the lifting vertical seat 301. At the same time, a reset spring 302 is also arranged in the lifting vertical seat 301. When the lifting main board 203 is lifted or lowered, the reset spring 302 and the limiting structure can ensure that the wear-resistant scraper plate 208 always contacts the inner wall of the slag discharge chamber 102, so as to better scrape and use, thereby improving the practicability of the device.

[0022] Specifically, the lifting scraper seat 207 is a concave structure, and a convex block is provided at the bottom of the lifting main board 203. The lifting scraper seat 207 is also slidably installed with the lifting main board 203 through the convex block, which ensures that the lifting scraper seat 207 is stably installed, and its structural stability is improved, and the scum is better scraped off. At the same time, the front surface of the flotation box 100 is installed with an inspection and observation platform 105, and a reaction chamber 101 is provided at one end of the interior of the flotation box 100, and an overflow water outlet is provided at the other end of the slag discharge chamber 102 of the flotation box 100. Cavity 104, a slag removal motor 106 is installed at the other end of the top of the flotation box 100, two slag scraping swivel seats 107 are installed on the top of the flotation box 100, a slag scraping chain 108 is installed between the two slag scraping swivel seats 107, and a slag scraping plate 109 for scraping slag is provided on the slag scraping chain 108, a transmission belt is installed between the reciprocating screw rod 200 and one of the slag scraping swivel seats 107, and the slag scraping plate 109 is driven to rotate by the slag removal motor 106, so as to facilitate the scraping of slag, and the scraped slag falls into the slag discharge chamber 102 for better cleaning.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment process for the preparation of synthetic fragrances, characterized in that: The specific steps include: S1. Sedimentation: passing the wastewater into a sedimentation tank, and using gravity to precipitate the suspended solids in the wastewater, thereby separating the clear liquid from the suspended solids in the wastewater; S2, flotation, by introducing air or nitrogen or other gases into the wastewater, the suspended matter in the wastewater is attached to the bubbles and floats to the water surface, thereby being separated from the wastewater. The wastewater enters through the water inlet at one end of the flotation box (100), and then the water containing dissolved gas in the dissolved gas tank (110) enters. The impurities and fine suspended matter in the gas are floated by the dissolved gas, and then the scum is scraped off by the scraper plate (109) and falls into the scum discharge chamber (102). Then, the scum in the scum discharge chamber (102) is scraped off by the scraper motor (212) and discharged from the scum discharge pipe port (103) at an accelerated speed. S3, biological filtration, the wastewater after S2 is passed through the biological filler filter tank again. Through the action of the biofilm in the biological filler, the organic pollutants in the sewage are degraded. The pollutants can be more completely degraded into carbon dioxide, water and nitrogen, thus completing the filtration.

2. A wastewater treatment process for preparing synthetic fragrances according to claim 1, characterized in that: The invention comprises an air flotation box (100), wherein a dissolved air tank (110) is installed at one end of the air flotation box (100), a slag discharge chamber (102) is installed at the other end inside the air flotation box (100), a slag discharge pipe opening (103) is installed at one side of the slag discharge chamber (102), a scraping assembly is installed inside the slag discharge chamber (102), and the scraping assembly comprises a scraping motor (212), wherein the scraping motor (212) is installed at the other side of the slag discharge chamber (102) and is located at the front surface of the air flotation box (100), and the inner side of the slag discharge chamber (102) is located A reciprocating screw (200) is mounted on one end of the scraping motor (212); a scraping assembly for scraping scum is mounted on the reciprocating screw (200); the scraping assembly comprises a lifting mounting frame (202) that is lifted and lowered in a limited position and a lifting main board (203) for scraping; a screw sleeve (201) is mounted on the top of the lifting mounting frame (202); the lifting mounting frame (202) reciprocates on the reciprocating screw (200) via a guide limited position slot (210); and the lifting main board (203) is limitedly mounted on the bottom of the lifting mounting frame (202).

3. A wastewater treatment process for preparing synthetic fragrances according to claim 2, characterized in that: A limit rod (206) is installed on the top of the lifting main board (203), and spring rods (204) are symmetrically installed on both sides of the top of the lifting main board (203). The limit rod (206) and the spring rod (204) are inserted through and limited in the lifting installation frame (202), and one end of the spring rod (204) is located in the lifting installation frame (202) and is installed with a lifting spring (205).

4. A wastewater treatment process for preparing synthetic fragrances according to claim 2, characterized in that: Guide limit rods (209) are arranged on both sides of the lifting main board (203), a lifting scraper seat (207) is installed at the bottom of the lifting main board (203), and a wear-resistant scraper plate (208) is arranged at the bottom of the lifting scraper seat (207). Guide limit grooves (210) are opened on the side walls of both sides of the slag discharge chamber (102), a guide limit plate (211) is installed at one end of the guide limit groove (210), and the lifting main board (203) is slidably limited in the guide limit groove (210) by the guide limit rods (209).

5. A wastewater treatment process for preparing synthetic fragrances according to claim 2, characterized in that: When the scraping motor (212) drives the reciprocating screw (200) to rotate, it can drive the screw sleeve (201), the lifting mounting frame (202) and the lifting main board (203) to reciprocate in the slag discharge chamber (102) for scraping.

6. A wastewater treatment process for preparing synthetic fragrances according to claim 4, characterized in that: The guide limit groove (210) is provided with two upper and lower slideways, and the lifting main board (203) moves in the slideway at the bottom of the guide limit groove (210) through the limiting action of the guide limit plate (211) when scraping scum, and the lifting main board (203) moves in the slideway at the top of the guide limit groove (210) when resetting.

7. A wastewater treatment process for preparing synthetic fragrances according to claim 4, characterized in that: A torsion spring is installed at one end of the guide limit plate (211), and the guide limit plate (211) is rotationally limitedly installed by the torsion spring.

8. A wastewater treatment process for preparing synthetic fragrances according to claim 4, characterized in that: A T-shaped lifting rod (300) is installed at the bottom of the lifting main board (203), a lifting seat (301) is installed at the inner top of the lifting scraper seat (207), a return spring (302) is also installed at the inner bottom of the lifting seat (301), and the lifting main board (203) and the lifting scraper seat (207) are also installed for limiting position via the lifting rod (300) and the lifting seat (301).

9. A wastewater treatment process for preparing synthetic fragrances according to claim 8, characterized in that: The lifting scraper seat (207) is a concave structure, a protrusion is provided at the bottom of the lifting main board (203), and the lifting scraper seat (207) is also slidably mounted with the lifting main board (203) via the protrusion.

10. A wastewater treatment process for preparing synthetic fragrances according to claim 8, characterized in that: A maintenance observation platform (105) is installed on the front surface of the air flotation box (100), a reaction chamber (101) is provided at one end inside the air flotation box (100), an overflow water chamber (104) is provided at the other end inside the air flotation box (100) located at the slag discharge chamber (102), a slag removal motor (106) is installed at the other end of the top of the air flotation box (100), two slag scraping rotating seats (107) are installed on the top of the air flotation box (100), a slag scraping chain (108) is installed between the two slag scraping rotating seats (107), and a slag scraping plate (109) for scraping slag is provided on the slag scraping chain (108), a transmission belt is installed between the reciprocating screw rod (200) and one of the slag scraping rotating seats (107), and the slag scraping plate (109) is driven to rotate by the slag removal motor (106).

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