System for producing copper methionine

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a system for producing a copper methionine chelate, which comprises a copper-containing waste liquid pretreatment device, a filter, a reaction device, a turnover discharging suction filtration device, a filtrate collecting tank, a copper deposition tank and a filter press which are connected in sequence, and further comprises a drying device, the drying device is connected with the turnover discharging suction filtration device; wherein the copper-containing waste liquid pretreatment device is also provided with a copper-containing waste liquid feeding pipe for receiving the copper-containing waste liquid; and the reaction device is provided with a raw and auxiliary material feeding hole for receiving raw and auxiliary materials. According to the utility model, the recycling of resources is realized, and the cost is reduced and the efficiency is increased for production.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a system for producing methionine copper chelate. Background Art

[0002] With the rapid development of the PCB industry, the etching waste liquid produced by it is also regarded as a treasure by the hazardous waste industry. Valuable metal substances such as copper and its derivatives extracted from it can be used in many fields, such as catalysts, electroplating materials, wood preservatives, feed additives, etc. At present, copper salt products dominate the market as feed additives, and the demand in the breeding industry is increasing.

[0003] As a new type of organic feed additive, methionine copper chelate will not destroy various nutrients in the feed. It has a low antagonistic effect with other nutrients in the animal's gastrointestinal tract and will not catalyze the oxidation reaction of fats in the feed. It can simultaneously meet the animal's needs for copper salts and methionine.

[0004] In the prior art, methionine and a copper source are usually reacted in a certain addition ratio, and the pH is adjusted by an alkali solution (sodium carbonate or sodium hydroxide or potassium hydroxide) to prepare a methionine copper chelate, and the copper source is usually a soluble copper source (copper sulfate, copper nitrate and copper chloride, etc.) and a sparingly soluble copper source (copper hydroxide, basic copper carbonate and basic copper chloride), or a mixture of a soluble copper source and a sparingly soluble copper source. However, the above method may result in problems such as low product yield, low product purity or the generation of a large amount of inorganic salt wastewater.

[0005] Previously, there was a method for preparing copper methionine chelate using insoluble copper salt as a copper source, such as Chinese patent CN115724778A. This method uses copper hydroxide as a copper source and a soluble copper source as a catalyst to prepare copper methionine chelate. Although the solid yield is guaranteed, it has been verified that the incompletely reacted copper hydroxide affects the purity of the product. There is Chinese patent CN1995015A, which prepares copper methionine chelate by adjusting the pH of copper-containing etching waste liquid in a hydrochloric acid system. Although the copper content and methionine content of the product are guaranteed, the higher TDS in the copper-containing waste liquid affects the synthesis of copper methionine chelate. Basic copper chloride or copper hydroxide may be doped, resulting in excessive viscosity of the product. After drying, it needs to be crushed and screened, and the inorganic salt wastewater generated subsequently cannot be reused, resulting in a large treatment cost. Utility Model Content

[0006] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a system for producing methionine copper chelate, which realizes the recycling of resources and reduces production costs and increases efficiency.

[0007] To achieve the above object, the technical solution adopted by the utility model is: a system for producing copper methionine, comprising a copper-containing waste liquid pretreatment device, a filter, a reaction device, a flip unloading filtration device, a filtrate collection tank, a copper precipitation tank, a filter press, and a drying device connected to the flip unloading filtration device in sequence;

[0008] Wherein, the copper-containing waste liquid pretreatment device is also provided with a copper-containing waste liquid feed pipe for receiving the copper-containing waste liquid; and the reaction device is provided with a raw material feed port for receiving raw and auxiliary materials.

[0009] In some embodiments, the copper-containing waste liquid pretreatment device is further provided with an impurity remover feeding port, a reflux port, an overflow port and an emptying port; and / or

[0010] The copper-containing waste liquid pretreatment device is further provided with a first stirring unit; and / or

[0011] The top of the copper-containing waste liquid pretreatment device is connected to a first waste gas collecting pipe.

[0012] In some embodiments, the filter is a bag filter.

[0013] In some embodiments, the flip unloading filtration device includes a filtration tank, and a filter cloth is provided in the filtration tank.

[0014] In some embodiments, the reaction device is further provided with a second stirring unit; and / or

[0015] The top of the reaction device is connected with a second exhaust gas collecting pipe.

[0016] In some embodiments, the reaction device is provided with a heating device and a temperature detection sensor, the heating device is used to heat the material in the reaction device, and the temperature detection sensor is used to detect the temperature of the material in the reaction device.

[0017] In some embodiments, the heating device includes a jacket having a steam inlet and a steam condensate outlet. The steam inlet is used to introduce steam to heat the material in the reaction device, and the steam condensate outlet is used to discharge the condensate in the jacket.

[0018] In some embodiments, the discharge port of the reaction device is connected to a compressed air supply pipe and a tap water supply pipe.

[0019] In some embodiments, the system further comprises a copper mud collection station, which is disposed at the discharge port of the filter press and is used to collect the copper mud after the filter press is discharged.

[0020] In some embodiments, the copper-containing waste liquid pretreatment device is also provided with a mother liquor feed pipe, and the filtrate collecting tank is connected to the copper-containing waste liquid pretreatment device through the mother liquor feed pipe to reuse the filtrate in the filtrate collecting tank to the copper-containing waste liquid pretreatment device.

[0021] Compared with the prior art, the utility model has the following advantages:

[0022] The utility model removes impurities and dilutes copper-containing waste liquid in a pretreatment device, obtains pretreated copper-containing waste liquid after filtering and removing residues through a filter, feeds methionine and copper-containing waste liquid into a reaction device according to the amount of substances, produces methionine copper chelate under certain reaction conditions after being evenly mixed, washes the product and separates the solid and liquid through a flip unloading filtration device after the reaction, determines whether the mother liquor and washing liquid produced by the filtration reaction are recycled according to their TDS concentrations, and the open-flow filtrate can be directly sent to a biochemical pool to supplement nitrogen sources for microorganisms after copper precipitation treatment, and the recycling of the mother liquor reduces the wastewater treatment cost, truly achieving cost reduction and efficiency improvement for the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0024] Figure 1 A schematic diagram of the structure provided for an embodiment of the present application.

[0025] Figure 2 A schematic diagram of the process flow provided for an embodiment of the present application.

[0026] Figure 3 This is the infrared spectrum of the product prepared in the example of this application.

[0027] The attached drawings are marked as: 1. Pretreatment device for copper-containing waste liquid; 2. Filter; 3. Reaction device; 4. Overturning unloading filtration device; 5. Drying device; 6. Filtrate collecting tank; 7. Copper precipitation tank; 8. Filter press; 9. Copper mud collection platform. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0029] In this application, "and / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0030] In the present application, "at least one" means one or more, and "plurality" means two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b or c", or "at least one of a, b and c" can all mean: a, b, c, a+b, a+c, b+c, or a+b+c, where a, b, c can be single or multiple, respectively.

[0031] See also Figure 1 and Figure 2 The present embodiment provides a system for producing copper methionine. Furthermore, the system is a system for producing copper methionine by an aqueous method, comprising a copper-containing waste liquid pretreatment device 1, a filter 2, a reaction device 3, a flip unloading filtration device 4, a filtrate collecting tank 6, a copper precipitation tank 7, and a filter press 8 connected in sequence, and also comprising a drying device 5, wherein the drying device 5 is connected to the flip unloading filtration device 4; wherein the copper-containing waste liquid pretreatment device 1 is also provided with a copper-containing waste liquid feed pipe for receiving the copper-containing waste liquid; and the reaction device 3 is provided with a raw material feed port for receiving raw and auxiliary materials.

[0032] It can be understood that the copper-containing waste liquid pretreated by the copper-containing waste liquid pretreatment device 1 enters the reaction device 3 from the copper-containing waste liquid pretreatment device 1, and methionine enters the reaction device 3 through the raw material and auxiliary material feed port. In the reaction device 3, the copper-containing waste liquid and methionine are fully mixed and reacted.

[0033] Optionally, the purity of the methionine is above 99%; the reaction of the copper-containing waste liquid with methionine is carried out at a temperature of 70° C. to 90° C. and a pH of 4.5 to 5.5, and the reaction time is 1 to 2 hours.

[0034] Optionally, the copper-containing waste liquid contains at least one of copper nitrate, copper chloride and copper sulfate.

[0035] Optionally, the feed ratio of the methionine to the copper-containing waste liquid is n(methionine):n(Cu 2+ )=2:1, and the mass ratio of the copper-containing waste liquid after pretreatment to the methionine added is (12~15):1.

[0036] It can be understood that the flip unloading filtration device 4 realizes solid-liquid separation of the product and the mother liquor and cleaning of the product in the filtration tank. The mother liquor and washing liquid produced by the filtration are judged whether to be reused according to their TDF concentration. When TDS≤500ppt, the mother liquor is reused in the copper-containing waste liquid pretreatment device 1; when TDS>500ppt, the mother liquor enters the copper precipitation tank for copper precipitation treatment; the reuse of the mother liquor reduces the cost of wastewater treatment, and the open-flow filtrate can be directly sent to the biochemical pool for supplementing nitrogen source for microorganisms after copper precipitation treatment, which truly reduces costs and increases efficiency for the enterprise.

[0037] Optionally, the copper deposition process is performed in the copper deposition tank 7 at a pH of 5-6.

[0038] Optionally, the filter press 8 performs solid-liquid separation on the mixture of copper sludge and water produced by the copper precipitation tank 7, and the produced filtrate can be directly subjected to biochemical treatment, and methionine in the filtrate can be used as a nitrogen source for microorganisms.

[0039] In some embodiments, the copper-containing waste liquid pretreatment device 1 is also provided with an impurity removal agent feeding port, a reflux port, an overflow port and an emptying port; and / or, a first stirring unit is also provided in the copper-containing waste liquid pretreatment device 1; and / or, a first waste gas collection pipe is connected to the top of the copper-containing waste liquid pretreatment device 1.

[0040] In some embodiments, the filter 2 is a bag filter.

[0041] In some embodiments, the flip unloading filtration device 4 includes a filtration tank, and a filter cloth is arranged in the filtration tank.

[0042] Optionally, the mother liquor can be subjected to impurity removal, and the method for removing impurities from the mother liquor can be oxidation, chemical precipitation, filtration, etc.; in oxidative impurity removal, the oxidant can be a chemical agent such as hydrogen peroxide and potassium permanganate.

[0043] In some embodiments, the reaction device 3 is further provided with a second stirring unit; and / or the top of the reaction device 3 is connected to a second exhaust gas collection pipe.

[0044] In some embodiments, the reaction device 3 is provided with a heating device and a temperature detection sensor, the heating device is used to heat the material in the reaction device 3, and the temperature detection sensor is used to detect the temperature of the material in the reaction device 3.

[0045] In some embodiments, the heating device includes a jacket, and the jacket is provided with a steam inlet and a steam condensate outlet, wherein the steam inlet is used to introduce steam to heat the material in the reaction device 3, and the steam condensate outlet is used to discharge the condensate in the jacket.

[0046] In some embodiments, the discharge port of the reaction device 3 is connected to a compressed air supply pipe and a tap water supply pipe.

[0047] In some embodiments, the system further comprises a copper mud collection station 9 , which is disposed at the discharge port of the filter press 8 and is used to collect the copper mud after the filter press 8 is discharged.

[0048] In some embodiments, the copper-containing waste liquid pretreatment device 1 is also provided with a mother liquor feed pipe, and the filtrate collecting tank 6 is connected to the copper-containing waste liquid pretreatment device 1 through the mother liquor feed pipe to reuse the filtrate in the filtrate collecting tank 6 to the copper-containing waste liquid pretreatment device 1.

[0049] Optionally, the system further includes components such as a tap water supply pipe, a mixing unit, a valve assembly, and a material transfer pump assembly, etc. Those skilled in the art may add components according to actual needs, and this application does not specifically limit them.

[0050] The present embodiment is used to produce methionine copper chelate. The product is a bluish purple powder with soft and uniform particles (70 mesh sieve material <20%), a copper content of ≥17%, a methionine content of ≥78%, which meets national standards, and a product yield of more than 96%. The infrared spectrum of the product is as follows Figure 3 As shown, the Fourier infrared spectrum results are consistent with those in previous literature, and it can be determined that the purity of the produced copper methionine chelate is high. The utility model realizes the recycling of resources, and the recycling of mother liquor truly reduces costs and increases efficiency for enterprises, and is suitable for industrialization.

[0051] The above is a detailed introduction to the optoelectronic device and display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A system for producing copper methionine, characterized in that: It includes a copper-containing waste liquid pretreatment device, a filter, a reaction device, a flip unloading filtration device, a filtrate collecting tank, a copper precipitation tank, and a filter press, which are connected in sequence, and also includes a drying device, which is connected to the flip unloading filtration device; Wherein, the copper-containing waste liquid pretreatment device is also provided with a copper-containing waste liquid feed pipe for receiving the copper-containing waste liquid; and the reaction device is provided with a raw material feed port for receiving raw and auxiliary materials.

2. The system for producing copper methionine according to claim 1, characterized in that: The copper-containing waste liquid pretreatment device is also provided with an impurity remover feeding port, a reflux port, an overflow port and an emptying port; and / or The copper-containing waste liquid pretreatment device is further provided with a first stirring unit; and / or The top of the copper-containing waste liquid pretreatment device is connected to a first waste gas collecting pipe.

3. The system for producing copper methionine according to claim 1, characterized in that: The filter is a bag filter.

4. The system for producing copper methionine according to claim 1, characterized in that: The overturning unloading filtration device comprises a filtration tank, in which a filter cloth is arranged.

5. The system for producing copper methionine according to claim 1, characterized in that: The reaction device is further provided with a second stirring unit; and / or The top of the reaction device is connected with a second exhaust gas collecting pipe.

6. The system for producing copper methionine according to claim 1, characterized in that: The reaction device is provided with a heating device and a temperature detection sensor. The heating device is used to heat the material in the reaction device, and the temperature detection sensor is used to detect the temperature of the material in the reaction device.

7. The system for producing copper methionine according to claim 6, characterized in that: The heating device comprises a jacket, and the jacket is provided with a steam inlet and a steam condensate outlet. The steam inlet is used to introduce steam to heat the materials in the reaction device, and the steam condensate outlet is used to discharge the condensate in the jacket.

8. The system for producing copper methionine according to claim 1, characterized in that: The discharge port of the reaction device is connected with a compressed air supply pipe and a tap water supply pipe.

9. The system for producing copper methionine according to claim 1, characterized in that: The system also includes a copper mud collection station, which is arranged at the discharge port of the filter press and is used to collect the copper mud after the filter press is discharged.

10. The system for producing copper methionine according to claim 1, characterized in that: The copper-containing waste liquid pretreatment device is also provided with a mother liquor feed pipe, and the filtrate collecting tank is connected to the copper-containing waste liquid pretreatment device through the mother liquor feed pipe to reuse the filtrate in the filtrate collecting tank to the copper-containing waste liquid pretreatment device.

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