Chemical mineral separation device for digesting acidic condensate in multiple ways

Abstract

The utility model relates to the field of mineral separation production, in particular to a chemical mineral separation device for digesting acidic condensate in multiple ways. The utility model discloses a chemical mineral separation device for digesting acidic condensate in multiple ways. The chemical mineral separation device comprises an acidic condensate storage tank for containing the acidic condensate, the wet mill, the lime milk tank and the first acid preparation tank are connected with the acidic condensate storage tank in parallel. The chemical mineral separation device can efficiently and quickly digest acid condensate, the digestion rate reaches 32 m < 3 > / h, a large amount of acid condensate cannot be accumulated, and the risk of bubbling and overflowing of the acid condensate storage tank is solved.

Description

Technical Field

[0001] The utility model relates to the production field of ore dressing, in particular to a chemical ore dressing device for multi-path digestion of acid condensate. Background Art

[0002] At present, the average pH value of the acidic condensate produced by the dry beneficiation device is 1.5-3.0, and the average phosphorus content is 300-400 mg / L in terms of P2O5. If it is discharged directly, it will cause excessive phosphorus and low pH value of the acidic condensate, which will damage the ecological environment. In current production, there are two ways to digest the acidic condensate of phosphoric acid: one is to use the acidic condensate for grinding, and the digestion volume is only 2.5m 3 / h; secondly, the acidic condensate is used as the washing water of the filter press, which has poor effect and cannot be used.

[0003] To this end, the present application provides a chemical mineral processing device for multi-path digestion of acidic condensate. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a chemical beneficiation device for digesting acidic condensate in multiple ways. The chemical beneficiation device can efficiently and quickly digest the acidic condensate, and the digestion rate reaches 32m 3 / h, which will not cause a large amount of accumulation of acid condensate and solve the risk of bubbling and overflow in the acid condensate storage tank.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A chemical mineral separation device for multi-path digestion of acid condensate, comprising an acid condensate storage tank for containing the acid condensate;

[0007] It also includes a wet mill, a lime milk tank, and a first acid preparation tank which are connected in parallel with the acid condensate storage tank.

[0008] Through the above technical solution, the wet mill can consume the acid condensate by introducing the ore into the wet mill for grinding during the wet grinding process, and the rate of digesting the acid condensate can reach 2.5m 3 / h;

[0009] The lime emulsion in the lime emulsion tank can react with the acid condensate to consume the acid condensate. The digestion rate of the acid condensate can reach 2.5m 3 / h.

[0010] The first acid preparation tank mixes the acid condensate with nitric acid to prepare mixed acid, which can be used in the leaching section (leaching tank). The digestion rate of the acid condensate can reach 3m 3 / h.

[0011] Preferably, the method further comprises a second acid preparation tank connected in parallel with the acid condensate storage tank.

[0012] Preferably, the method further comprises a spray tower connected in parallel with the acid condensate storage tank.

[0013] Through the above technical solution, the spray tower is set above the 2# conveyor belt; the acid condensate sprayed from the spray tower cools the calcined low-magnesium ore, that is, the acid condensate is used to cool the 2# conveyor belt during calcination. The rate at which the spray tower digests the acid condensate can reach 12m 3 / h.

[0014] Preferably, the wet mill is connected to a slurry tank.

[0015] Preferably, the first acid preparation tank is connected to the first leaching tank.

[0016] Preferably, the second acid preparation tank is connected to a filter press, and the filter press is connected to a filtrate tank.

[0017] Preferably, the first acid preparation tank is connected to the nitric acid tank.

[0018] Preferably, the second acid preparation tank is used to react the acidic condensate with lime milk.

[0019] Preferably, the chemical beneficiation device has a digestion rate of acid condensate of ≥32m 3 / h.

[0020] Preferably, the digestion rate of the acid condensate in the second acid preparation tank is ≥12m 3 / h.

[0021] The beneficial effects of the utility model are:

[0022] 1. The chemical mineral processing device described in this application realizes multi-stage treatment of acid condensate through wet mill treatment, lime milk tank treatment, first acid preparation tank treatment, second acid preparation tank treatment, and spray tower treatment, and the digestion rate of acid condensate is ≥32m 3 / h.

[0023] 2. The chemical mineral processing device described in the present application improves the treatment efficiency of the acidic condensate, increases the ways to digest the acidic condensate, improves the digestion capacity of the chemical mineral processing device, realizes the comprehensive utilization of the acidic condensate, and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a structural schematic diagram of the utility model chemical ore dressing device;

[0026] Figure 2 It is a schematic diagram of the material flow during the operation of the utility model chemical ore dressing device;

[0027] Among them: 10, acid condensate storage tank; 20, wet mill; 21, slurry tank; 30, lime milk tank; 40, first acid preparation tank; 41, first leaching tank; 42, nitric acid tank; 50, second acid preparation tank; 51, filter press; 52, filtrate tank; 60, spray tower. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0029] The applicant found that if the chemical beneficiation device for digesting acidic condensate is only connected to the wet mill for treatment, and then the acidic condensate after the wet mill is introduced into the pulp tank, the processing capacity of this treatment route is only 2.5m 3 / h, resulting in the risk of bubbling and overflow in the acid condensate storage tank; in addition, the current situation of calcining low-magnesium phosphate concentrate in dry mineral processing equipment is: the discharge temperature of calcined ore is high (150-240℃), and the belt is prone to fire.

[0030] To this end, this application provides Figure 1 The chemical beneficiation device for multi-path digestion of acid condensate shown includes an acid condensate storage tank 10 for containing the acid condensate;

[0031] The system also includes a wet grinder 20 , a lime milk tank 30 , and a first acid preparation tank 40 connected in parallel with the acid condensate storage tank 10 .

[0032] Specifically, the acidic condensate storage tank is used to store the generated acidic condensate;

[0033] The discharge port of the acid condensate storage tank is connected to the feed port of the underground tank, and the feed port of the underground tank is connected to the feed port of the wet mill;

[0034] Another discharge port of the acid condensate storage tank is connected to the feed port of the lime milk tank;

[0035] Another discharge port of the acid condensate storage tank is connected to the feed port of the first acid preparation tank.

[0036] The above technical solution can digest the acid condensate in time by connecting the wet mill, the lime milk tank, and the first acid preparation tank in parallel to the discharge port of the acid condensate storage tank;

[0037] More specifically, the wet mill can consume the acid condensate by introducing the ore into the wet mill for grinding during the wet grinding process. The rate of digestion of the acid condensate can reach 2.5m 3 / h;

[0038] The lime emulsion in the lime emulsion tank can react with the acid condensate to consume the acid condensate. The digestion rate of the acid condensate can reach 2.5m 3 / h.

[0039] The first acid preparation tank mixes the acid condensate with nitric acid to prepare mixed acid, which can be used in the leaching section (leaching tank). The digestion rate of the acid condensate can reach 3m 3 / h.

[0040] In one embodiment, the chemical mineral processing device further includes a second acid preparation tank 50 connected in parallel with the acid condensate storage tank 10 .

[0041] Specifically, the discharge port of the acid condensate storage tank is connected to the feed port of the second acid preparation tank.

[0042] In one embodiment, the chemical mineral processing device further includes a spray tower 60 connected in parallel with the acidic condensate storage tank 10 .

[0043] Specifically, the outlet of the acid condensate storage tank is connected to the feed inlet of the spray tower, and the spray tower is set above the 2# conveyor belt; the acid condensate sprayed from the spray tower cools the calcined low-magnesium ore, that is, the acid condensate is used to cool the 2# conveyor belt during calcination, and the rate at which the spray tower digests the acid condensate can reach 12m 3 / h.

[0044] In one embodiment, the wet mill 20 is connected to a slurry tank 21 .

[0045] Specifically, the discharge port of the wet mill is connected to the feed port of the slurry tank.

[0046] In one embodiment, the first acid preparation tank 40 is connected to the first leaching tank 41 .

[0047] Specifically, the discharge port of the first acid preparation tank is connected to the feed port of the first leaching tank. The number of the first acid preparation tanks is set to 1-5, and the number of the first leaching tanks is set to 1-5.

[0048] In one embodiment, the second acid preparation tank 50 is connected to a filter press 51 , and the filter press 51 is connected to a filtrate tank 52 .

[0049] Specifically, the discharge port of the second acid preparation tank is connected to the feed port of the filter press, and the liquid outlet of the filter press is connected to the feed port of the filtrate tank. The number of the second acid preparation tanks is set to 1-5.

[0050] In one embodiment, the first acid preparation tank 40 is connected to the nitric acid tank 42.

[0051] Specifically, the feed port of the first acid preparation tank is connected to the discharge port of the nitric acid tank, that is, the 65% nitric acid solution of the nitric acid tank is introduced into the first acid preparation tank; the 65% nitric acid solution and the acidic condensate are fully mixed in the first acid preparation tank to obtain the first acid preparation mixed solution.

[0052] In one embodiment, the second acid preparation tank 50 is used to react the acidic condensate with lime milk.

[0053] Specifically, the feed port of the second acid preparation tank is connected to the discharge port of the lime milk storage tank, that is, 10% of the lime milk in the lime milk storage tank is introduced into the second acid preparation tank; 10% of the lime milk and the acid condensate are fully mixed in the second acid preparation tank to obtain the second acid preparation mixed liquid, and the digestion rate of the acid condensate can reach 12m 3 / h.

[0054] like Figure 2 As shown, the chemical beneficiation device for multi-path digestion of acidic condensate described in the present application has the following several paths to digest the acidic condensate:

[0055] The first one is wet mill treatment, that is, the outlet of the acid condensate storage tank is connected to the feed port of the underground tank, the outlet of the underground tank is connected to the feed port of the wet mill, and the outlet of the wet mill is connected to the feed port of the slurry tank; in this path, the digestion rate of the acid condensate can be designed to reach 2.5m 3 / h.

[0056] The second route is lime milk tank treatment, that is, the outlet of the acid condensate storage tank is connected to the feed port of the lime milk tank; in this route, the digestion rate of the acid condensate reaches 2.5m 3 / h.

[0057] The third route is the first acid preparation tank treatment, that is, the discharge port of the acid condensate storage tank is connected to the feed port of the first acid preparation tank, the discharge port of the first acid preparation tank is connected to the feed port of the first leaching tank, and the discharge port of the nitric acid tank is connected to the feed port of the first acid preparation tank; in this route, the digestion rate of the acid condensate reaches 3m 3 / h.

[0058] The fourth route is the second acid preparation tank treatment. The outlet of the acid condensate storage tank is connected to the feed port of the second acid preparation tank, the outlet of the second acid preparation tank is connected to the feed port of the filter press, and the outlet of the filter press is connected to the feed port of the filtrate tank. In this route, the rate of digestion of the acid condensate reaches 12m / s. 3 / h.

[0059] The fifth route is spray tower treatment, that is, the outlet of the acid condensate storage tank is connected to the feed port of the spray tower. The spray tower is used to spray and cool the calcined ore. In this route, the rate of digesting the acid condensate reaches 12m 3 / h.

[0060] Therefore, the chemical beneficiation device described in the present application realizes multi-stage treatment of the acid condensate through wet mill treatment, lime milk tank treatment, first acid preparation tank treatment, second acid preparation tank treatment, and spray tower treatment, and the digestion rate of the acid condensate is ≥32m 3 / h.

[0061] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A chemical mineral separation device for multi-path digestion of acidic condensate, comprising an acidic condensate storage tank (10) for containing the acidic condensate; It is characterized in that It also includes a wet grinder (20), a lime milk tank (30), and a first acid preparation tank (40) which are connected in parallel to the acid condensate storage tank (10).

2. The chemical mineral separation device according to claim 1, characterized in that: It also includes a second acid preparation tank (50) connected in parallel with the acid condensate storage tank (10).

3. The chemical mineral separation device according to claim 1, characterized in that: It also includes a spray tower (60) connected in parallel with the acid condensate storage tank (10).

4. The chemical mineral separation device according to claim 1, characterized in that: The wet mill (20) is connected to a pulp tank (21).

5. The chemical mineral separation device according to claim 1, characterized in that: The first acid preparation tank (40) is connected to the first leaching tank (41).

6. The chemical mineral separation device according to claim 2, characterized in that: The second acid preparation tank (50) is connected to a filter press (51), and the filter press (51) is connected to a filtrate tank (52).

7. The chemical mineral separation device according to claim 1, characterized in that: The first acid preparation tank (40) is connected to the nitric acid tank (42).

8. The chemical mineral separation device according to claim 2, characterized in that: The second acid preparation tank (50) is used to react the acidic condensate with lime milk.

9. The chemical mineral separation device according to claim 1, characterized in that: The chemical beneficiation device has a digestion rate of acid condensate ≥ 32m 3 / h.

10. The chemical mineral separation device according to claim 2, characterized in that: The rate of digestion of the acid condensate in the second acid preparation tank (50) is ≥12m 3 / h.

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