Deep processing magnetic separation grinding classification system

Abstract

The utility model discloses a deep processing magnetic separation grinding classification system, which relates to the technical field of ore processing and comprises rough concentrate, a dryer and a four-section dry magnetic separator, the dryer is arranged on the right side of the four-section dry magnetic separator, and a feed hopper is arranged at the top end of the four-section dry magnetic separator. The four-section dry magnetic separator is provided with four sets of discharging ports, rough concentrate passes through the interior of the drying machine through a feeding belt, the left end of the feeding belt is arranged on the upper side of a feeding hopper, a first conveying belt and a second conveying belt are arranged on the lower side of the discharging port in the lower end, a third conveying belt is arranged on the lower side of the discharging port in the left side, and a fourth conveying belt is arranged on the lower side of the discharging port in the right side. According to the system, magnetic tailings, first-stage nepheline mineral powder and second-stage nepheline mineral powder are separated through four sections of magnetic separation frequency bands of the four-section dry magnetic separator, and the first-stage nepheline mineral powder is matched with the first-stage wind power classifier through the first-stage ball mill to obtain first nepheline concentrate; and the second-stage nepheline ore powder passes through a second-stage ball mill and is matched with a second-stage wind power classifier to obtain second nepheline concentrate.

Description

TECHNICAL FIELD

[0001] The utility model relates to ore processing technical field, concretely relates to a deep processing magnetic separation grinding powder grading system. BACKGROUND

[0002] Nepheline, belong to the feldspar group minerals in the framework silicate, under the condition of unsaturated silicon dioxide, is the symbol mineral in sodium-rich silicon-poor alkali rock, often occurs in nepheline syenite, aegirine-augite rock, phosphorus nepheline etc. alkali volcanic rocks. Natural nepheline, its appearance is similar to quartz, nature is similar to alkali feldspar, theoretical chemical composition contains 44% SiO2 and 33% Al2O3, is a kind of mineral raw material that has been widely used in glass-ceramic industry

[0003] The particle size of the existing nepheline product is generally (-30+150 mesh), and the iron content is ≤0.30%, which is relatively high compared with market demand, and the particle size is relatively coarse, resulting in weak market competitiveness, so that the coarse particle product needs to be deep-processed.

[0004] Therefore, the present scheme provides a deep processing magnetic separation grinding powder grading system, which deep processes the dried coarse particle product to obtain two groups of high-quality nepheline concentrate powder, greatly reduces the particle size of the nepheline powder and improves the whiteness of the product, solving the above problems. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, a deep processing magnetic separation grinding powder grading system is provided, which solves the problems raised in the background art.

[0006] To achieve the above purposes, the technical scheme adopted by the utility model is as follows:

[0007] A deep processing magnetic separation grinding powder grading system, comprising coarse concentrate, a dryer and a four-section dry magnetic separator, the dryer is arranged on the right side of the four-section dry magnetic separator, the top end of the four-section dry magnetic separator is provided with a feeding hopper, the four-section dry magnetic separator is provided with four groups of discharge ports, three groups of the discharge ports are arranged at the lower end, and the remaining one group of the discharge ports is arranged on the left side of the four-section dry magnetic separator, the coarse concentrate passes through the inside of the dryer through a feeding belt, the left end of the feeding belt is arranged on the upper side of the feeding hopper, the lower side of the lower end discharge port is provided with a first conveying belt and a second conveying belt, and the lower side of the left side discharge port is provided with a third conveying belt.

[0008] Preferably, the first conveying belt is used for conveying magnetic tailings, and the other end of the first conveying belt is provided with a metering packaging machine.

[0009] Preferably, the second conveying belt is used for conveying first-grade nepheline powder, and the other end of the second conveying belt is provided with a first-stage ball mill and a first-stage air classifier.

[0010] Preferably, the third conveying belt is used for conveying the secondary nepheline ore powder, and the other end of the third conveying belt is provided with a secondary ball mill and a secondary wind classifier

[0011] Compared with the prior art, the deep processing magnetic separation and grinding classification system has the following beneficial effects:

[0012] 1. The four-section dry magnetic separator is arranged in the utility model, the four-section dry magnetic separator is provided with four-section magnetic selection frequency bands, and the strengths of the four-section magnetic selection frequency bands are different, wherein the first three-section magnetic selection frequency bands are used for magnetic separation and iron removal, and nepheline mixed ore powder and magnetic tailings are separated, the last-section magnetic selection frequency band is used for separating primary nepheline ore powder and secondary nepheline ore powder, the primary nepheline ore powder is ground through a primary ball mill, the ground primary nepheline ore powder is classified again through a primary wind classifier, unqualified ore powder is sent back to the interior of the primary ball mill to be ground again, and first nepheline concentrate is obtained after being qualified, the first nepheline concentrate is 200-mesh nepheline ore powder that is all passed, and Fe2O3≤0.15%; similarly, the secondary nepheline ore powder is ground through a secondary ball mill, the ground secondary nepheline ore powder is classified again through a secondary wind classifier, unqualified ore powder is sent back to the interior of the secondary ball mill to be ground again, and second nepheline concentrate is obtained after being qualified, the second nepheline concentrate is 200-mesh nepheline ore powder that is 95% passed, and Fe2O3≤0.20%. The device deep processes the dry coarse particle product, thereby producing two groups of high-quality nepheline concentrate powder, greatly reduces the granularity of the nepheline ore powder, improves the whiteness of the product, and effectively improves the competitiveness of the product in the market. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure flow schematic diagram of the utility model;

[0014] Figure 2 It is a structure schematic diagram of the dryer and the four-section dry magnetic separator in the utility model.

[0015] Reference numerals in the drawing are:

[0016] 1, coarse concentrate; 2, dryer; 3, four-section dry magnetic separator; 301, feeding hopper; 302, discharge port; 4, nepheline mixed ore powder; 5, magnetic tailings; 6, primary nepheline ore powder; 7, secondary nepheline ore powder; 8, primary ball mill; 9, secondary ball mill; 10, primary wind classifier; 11, secondary wind classifier; 12, first nepheline concentrate; 13, second nepheline concentrate; 14, feeding belt; 15, first conveying belt; 16, second conveying belt; 17, third conveying belt. DETAILED DESCRIPTION

[0017] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be conceived by those skilled in the art.

[0018] Referring to Figure 1 - Figure 2 As shown in the figure, a deep processing magnetic separation and grinding classification system comprises a rough concentrate 1, a dryer 2 and a four-stage dry magnetic separator 3, the rough concentrate 1 is obtained after a series of processes such as rough crushing, ore washing, medium crushing, screening classification, fine crushing and secondary screening of nepheline raw ore, the dryer 2 is arranged at the right side of the four-stage dry magnetic separator 3, the top end of the four-stage dry magnetic separator 3 is provided with a feeding hopper 301, the four-stage dry magnetic separator 3 is provided with four groups of discharge ports 302, three groups of the discharge ports 302 are arranged at the lower end, and the remaining one group of the discharge ports 302 is arranged at the left side of the four-stage dry magnetic separator 3, the four-stage dry magnetic separator 3 is provided with four-stage magnetic separation frequency bands, and the strengths of the four-stage magnetic separation frequency bands are all different, wherein the first three-stage magnetic separation frequency bands are used for magnetic separation and iron removal, and the separation obtains nepheline mixed ore powder 4 and magnetic tailings 5, and the last-stage magnetic separation frequency band is used for separating first-stage nepheline ore powder 6 and second-stage nepheline ore powder 7, the rough concentrate 1 passes through the inside of the dryer 2 through a feeding belt 14, the left end of the feeding belt 14 is arranged on the upper side of the feeding hopper 301, the lower end of the discharge port 302 is provided with a first conveying belt 15 and a second conveying belt 16, and the lower side of the left side of the discharge port 302 is provided with a third conveying belt 17. The device deep processes the dried coarse particle product, thereby obtaining the production of two groups of high-quality nepheline concentrate powder, greatly reducing the particle size of the nepheline ore powder, improving the whiteness of the product, and effectively improving the competitiveness of the product in the market, and the specific process is as follows:

[0019] Step one: after the rough concentrate 1 is processed in sequence, the particle size is between 30+200 meshes, the rough concentrate 1 is dried by the dryer 2 to obtain dried rough concentrate 1;

[0020] Step two: the dried rough concentrate 1 is put into the four-stage dry magnetic separator 3, the rough concentrate 1 is subjected to magnetic separation and iron removal by the four-stage dry magnetic separator 3, and the nepheline mixed ore powder 4 and the magnetic tailings 5 are obtained, the nepheline mixed ore powder 4 is subjected to secondary magnetic separation by the four-stage dry magnetic separator 3, and finally the first-stage nepheline ore powder 6 and the second-stage nepheline ore powder 7 are obtained;

[0021] Step three: the first-stage nepheline ore powder 6 is ground by a first-stage ball mill 8, the ground first-stage nepheline ore powder 6 is classified again by a first-stage air classifier 10, and the unqualified ore powder is sent back to the inside of the first-stage ball mill 8 for regrinding, and the qualified product first nepheline concentrate 12 is obtained;

[0022] Step four: the secondary nepheline ore powder 7 is ground by the secondary ball mill 9, and the ground secondary nepheline ore powder 7 is classified again by the secondary air classifier 11, and the unqualified ore powder is sent back to the inside of the secondary ball mill 9 to be ground again, and the qualified product is the second nepheline concentrate 13.

[0023] Specifically, in the embodiment, the first conveying belt 15 is used for conveying the magnetic tail 5, and the other end of the first conveying belt 15 is provided with a metering packaging machine.

[0024] Specifically, in the embodiment, the second conveying belt 16 is used for conveying the primary nepheline ore powder 6, and the other end of the second conveying belt 16 is provided with the primary ball mill 8 and the primary air classifier 10. The first nepheline concentrate 12 is a 200-mesh full-pass nepheline ore powder, wherein Fe2O3≤0.15%.

[0025] Specifically, in the embodiment, the third conveying belt 17 is used for conveying the secondary nepheline ore powder 7, and the other end of the third conveying belt 17 is provided with the secondary ball mill 9 and the secondary air classifier 11. The second nepheline concentrate 13 is a 200-mesh 95% pass nepheline ore powder, wherein Fe2O3≤0.20%.

[0026] The working principle of the utility model is:

[0027] Step one: after the rough concentrate 1 is processed in advance, the particle size is between 30+200 meshes, the rough concentrate 1 is dried by the dryer 2, and the dried rough concentrate 1 is obtained;

[0028] Step two: the dried rough concentrate 1 is put into the four-section dry magnetic separator 3, the four-section dry magnetic separator 3 is provided with four-section magnetic selection frequency bands, and the strengths of the four-section magnetic selection frequency bands are different, after debugging, the first three-section magnetic selection frequency bands are used for magnetic selection and iron removal, so that the four-section dry magnetic separator 3 can perform magnetic selection and iron removal on the rough concentrate 1, and then the last section of the magnetic selection frequency band is used for separating the nepheline mixed ore powder 4, so that the nepheline mixed ore powder 4 is subjected to secondary magnetic selection by the four-section dry magnetic separator 3, and finally the primary nepheline ore powder 6 and the secondary nepheline ore powder 7 are obtained;

[0029] Step three: the primary nepheline ore powder 6 is ground by the primary ball mill 8, and the ground primary nepheline ore powder 6 is classified again by the primary air classifier 10, and the unqualified ore powder is sent back to the inside of the primary ball mill 8 to be ground again, and the qualified product is the first nepheline concentrate 12;

[0030] Step four: the secondary nepheline ore powder 7 is grinded by the secondary ball mill 9, the grinded secondary nepheline ore powder 7 is classified again by the secondary wind classifier 11, the unqualified ore powder is sent back to the inside of the secondary ball mill 9 to be grinded again, and the qualified product is the second nepheline concentrate 13.

[0031] Finally, the final products are the magnetic tail 5, the first nepheline concentrate 12 and the second nepheline concentrate 13 respectively, wherein the first nepheline concentrate 12 is the 200 mesh full-pass nepheline ore powder, wherein Fe2O3≤0.15%; the second nepheline concentrate 13 is the 200 mesh 95% pass nepheline ore powder, wherein Fe2O3≤0.20%.

[0032] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A deep processing magnetic separation and grinding classification system, characterized by, Including rough concentrate (1), dryer (2) and four section dry magnetic separator (3), the dryer (2) is arranged in the right side of four section dry magnetic separator (3), the top of four section dry magnetic separator (3) is provided with feeding hopper (301), four section dry magnetic separator (3) is provided with four groups of discharge port (302), wherein three groups of discharge port (302) are arranged in the lower end, the remaining one group of discharge port (302) is arranged in the left side of four section dry magnetic separator (3), the rough concentrate (1) passes through the inside of dryer (2) by feeding belt (14), the left end of feeding belt (14) is arranged in the upper side of feeding hopper (301), the lower end of discharge port (302) is provided with first conveyor belt (15) and second conveyor belt (16), the lower side of left side discharge port (302) is provided with third conveyor belt (17).

2. The deep processing magnetic separation and grinding classification system according to claim 1, characterized in that: The first conveyor belt (15) is used for conveying magnetic tail (5), and the other end of the first conveyor belt (15) is provided with a metering packaging machine.

3. The deep processing magnetic separation and milling classification system of claim 1, wherein: The second conveyor belt (16) is used for conveying first grade nepheline ore powder (6), and the other end of the second conveyor belt (16) is provided with a first grade ball mill (8) and a first grade wind classifier (10).

4. The deep processing magnetic separation and milling classification system of claim 1, wherein: The third conveyor belt (17) is used for conveying second grade nepheline ore powder (7), and the other end of the third conveyor belt (17) is provided with a second grade ball mill (9) and a second grade wind classifier (11).

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