Beneficiation and desilicication device for low-grade bauxite

Abstract

The utility model relates to the technical field of bauxite processing, in particular to a low-grade bauxite beneficiation and desilicication device. The utility model mainly aims to solve the problems that a common desilicication device usually needs to be heated to assist desilicication in the desilicication process, hot steam generated in the heating process can generate pressure on the interior and needs to be discharged to achieve the purpose of reduced-pressure installation and heating, so that heat energy waste is caused, and meanwhile, the inner wall of heating equipment is heated, so that the production cost is low. In order to solve the problems that in the prior art, the position, close to the inner wall of equipment, of a bauxite material in the heating process is heated much, the heating uniformity is reduced, and desilicication is affected, according to the technical scheme, the device comprises a treatment tank, a heating cylinder is installed in the treatment tank, and a stirring assembly is installed on the treatment tank and comprises a motor; and the output end of the motor is connected with a connecting piece. According to the monohydrallite heating device, the uniformity of monohydrallite in the heating process is improved while cyclic heating is achieved, redundant steam is discharged and collected in the pressure reduction process, and resource waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bauxite processing technical field especially relates to a low grade bauxite dressing desilication device. BACKGROUND

[0002] Low grade bauxite refers to the bauxite with low aluminum content and high silicon, iron and other impurities. Because the low grade bauxite contains high silicon, iron and other impurities, these are the resources that can be used, so it is necessary to carry out dressing desilication on the low grade bauxite to separate the silicon material in it for use. Nowadays, the bauxite is usually desilicated in the desilication device, and the heating desilication device is used to heat the bauxite, so that the silicon material in it can be separated conveniently. In the desilication process, heating is a key step, and through the heating desilication device, the silicon material in the bauxite is softened or changes its physical state, so that it is easier to separate from the ore.

[0003] But the common desilication device usually needs to be heated to assist desilication in the desilication process, and the hot steam generated in the heating process will produce pressure inside, which needs to be discharged to achieve the purpose of pressure reduction and heating, so as to cause waste of heat energy, and at the same time, because the inner wall of the heating equipment is heated, the bauxite material in the heating process is heated more near the inner wall of the equipment, which reduces the heating uniformity and affects the desilication. In view of this, we propose a low grade bauxite dressing desilication device. UTILITY MODEL CONTENT

[0004] The utility model aims at the problems in the background art and proposes a low grade bauxite dressing desilication device.

[0005] The utility model discloses a low grade bauxite dressing desilication device, including the processing jar, the inside installation of processing jar has the heating cylinder, install the stirring assembly on processing jar, stirring assembly includes motor, the output of motor is connected with connecting piece, the bottom of connecting piece is connected with the pivot, is arranged with the stirring pipe on the pivot, install the gas supply component on processing jar, the gas supply component includes the pressure tank, the outlet of pressure tank is connected with first gas pipe, the gas outlet of first gas pipe is connected with the hollow base, the inlet of pressure tank is connected with second gas pipe, the electromagnetic valve is arranged in the pressure tank, the top wall of processing jar installs the sealing cover.

[0006] Preferably, the heat conduction cavity is arranged in the inner wall of the heating cylinder, and the heat conduction cavity is arranged in a spring state.

[0007] Preferably, a first through hole is arranged on the top wall of the processing jar, and the first through hole is arranged in the sealing cover.

[0008] Preferably, the top end and the bottom end of the motor are provided with air cavities, the rotating shaft is provided with a second through hole, the stirring pipe is arranged in the second through hole, and the air inlet end and the air outlet end of the stirring pipe are communicated with the corresponding air cavities.

[0009] Preferably, the side wall of the pressure-resistant box is connected with an external conveying pipe, the top wall of the pressure-resistant box is provided with a pressure valve table, and the side wall of the treatment tank is provided with a controller.

[0010] Preferably, the top wall of the treatment tank and the feed valve are provided with a third through hole and a fourth through hole, respectively, and the third through hole and the fourth through hole are provided with a feed valve.

[0011] Preferably, the hollow base and the bottom wall of the treatment tank are provided with a fifth through hole and a sixth through hole, and the fifth through hole and the sixth through hole are provided with a discharge valve.

[0012] Compared with the prior art, the utility model has the advantages of the following beneficial technical effects:

[0013] The utility model discloses a motor driving connecting piece drives the rotating shaft and the stirring pipe to rotate, realizes the purpose of stirring bauxite, cooperates the pressure-resistant box to convey steam in the hollow base and the heating cylinder, makes steam heat the heating cylinder, is favorable in the process of stirring to improve heating uniformity, and under the guidance of the hollow base, steam conveniently passes through the stirring pipe, reaches the purpose of heating the stirring pipe, improves stirring heating uniformity because of the heating of the stirring pipe, prevents the bauxite close to the inner wall of the heating cylinder and the bauxite close to the rotating shaft from being unevenly heated, causes the stirring time length to increase, reduces the stirring efficiency, and cooperates the second air pipe, the electromagnetic air valve and the sealing cover, makes steam circulate and flow further improve heating efficiency and uniformity, is favorable in reducing resource waste, and still can discharge the excess steam, realizes decompression simultaneously, supplies other equipment to use, saves resources. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a kind of low-grade bauxite beneficiation desilication device's three-dimensional structure schematic diagram;

[0015] Figure 2 It is Figure 1 The cooperation structure schematic diagram of stirring subassembly and gas supply assembly;

[0016] Figure 3 It is Figure 1 The cut internal structure schematic diagram of

[0017] 1, processing tank; 2, heating cylinder; 3, stirring assembly; 31, motor; 32, connecting piece; 33, rotating shaft; 34, stirring pipe; 4, gas supply assembly; 41, pressure-resistant box; 42, external conveying pipe; 43, first gas pipe; 44, hollow base; 45, second gas pipe; 46, electromagnetic gas valve; 5, pressure valve table; 6, controller; 7, sealing cover; 8, feeding valve; 9, discharging valve. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be further explained below in combination with the drawings and specific embodiments.

[0019] EMBODIMENT

[0020] As Figures 1 to 3 shown in the utility model discloses a low grade bauxite beneficiation desilication device, including processing tank 1, heating cylinder 2 fixed mounting is installed on the inner wall of processing tank 1, the subsequent heating of the bauxite that enters processing tank 1 is convenient, and subsequent desilication treatment is convenient;Processing tank 1 is installed with stirring assembly 3, and stirring assembly 3 includes motor 31, connecting piece 32, rotating shaft 33 and stirring pipe 34, sealing cover 7 fixed mounting is installed on the top wall body of processing tank 1, and motor 31 is fixedly installed on the top wall body of sealing cover 7, and the first rotating hole and the second rotating hole are respectively set up on the top wall body of sealing cover 7 and the top wall body of processing tank 1, and the first sealing bearing is arranged in the second rotating hole, and the first sealing bearing is sleeved on the outer surface of rotating shaft 33, for assisting rotating shaft 33 rotation, and sealing the second rotating hole;The bottom of connecting piece 32 is arranged in four vertical structures, and the bottom of connecting piece 32 is connected with the top open end of rotating shaft 33, and the top end of connecting piece 32 is connected with the output end of motor 31, so that connecting piece 32 drives rotating shaft 33 to rotate under the drive of motor 31;Stirring pipe 34 is arranged in the second through hole in rotating shaft 33, and the two ends of stirring pipe 34 are respectively communicated with the air cavity in the top and bottom structure of rotating shaft 33, which is conducive to assisting gas flow, and is convenient for subsequent heating of stirring pipe 34, and stirring pipe 34 is driven by rotating shaft 33, which is convenient for stirring and heating bauxite.

[0021] Further, the processing tank 1 is provided with a gas supply assembly 4, which comprises a pressure-resistant box 41, an external delivery pipe 42, a first gas pipe 43, a hollow base 44, a second gas pipe 45 and an electromagnetic gas valve 46. The pressure-resistant box 41 is fixedly installed on the outer wall of the processing tank 1, and the controller 6 is fixedly installed on the side wall of the pressure-resistant box 41, so as to facilitate the operation of the equipment. The pressure gauge 5 is fixedly installed on the top wall of the pressure-resistant box 41, which is conducive to detecting the pressure in the pressure-resistant box 41. The gas outlet end of the external delivery pipe 42 is connected with the opening in the side wall of the pressure-resistant box 41. The external delivery pipe 42 is used for cooperating with the existing steam generating equipment to introduce steam into the pressure-resistant box 41, so as to conveniently provide a heat source for heating the bauxite. The gas inlet end of the first gas pipe 43 is connected with the opening in the bottom of the pressure-resistant box 41, and the gas outlet end of the first gas pipe 43 is connected with the opening in the side wall of the hollow base 44, which is conducive to introducing steam into the hollow base 44. The opening in the top of the hollow base 44 corresponds to the opening in the bottom of the heating cylinder 2, so that the hollow base 44 can introduce steam into the heat-conducting cavity formed in the heating cylinder 2 through the opening in the bottom of the heating cylinder 2. The spring state of the heat-conducting cavity can expand the contact area between the heating cylinder 2 and the steam, which is conducive to heating and desiliconizing the bauxite. The opening in the top of the heating cylinder 2 corresponds to the first through hole formed in the top of the processing tank 1, which is conducive to making the steam enter the sealed cover 7 after passing through the heat-conducting cavity. The opening in the side wall of the sealed cover 7 is connected with the gas inlet end of the second gas pipe 45, and the gas outlet end of the second gas pipe 45 is connected with the opening in the top of the pressure-resistant box 41, so as to conveniently introduce the whole in the sealed cover 7 into the pressure-resistant box 41 for collection.

[0022] The inside of the pressure-resistant box 41 is divided into two cavities. The second gas pipe 45 is connected with the upper cavity, and the external delivery pipe 42 and the first gas pipe 43 are connected with the lower cavity. The electromagnetic gas valve 46 is installed between the two cavities, so as to conveniently introduce the whole gas in the upper cavity into the lower cavity after being opened to form a circulating flow, thereby improving the uniformity of heating and achieving the recycling of steam. The back of the pressure-resistant box 41 is connected with a discharge pipe, which is not shown in the drawings. The whole can be discharged into other equipment for use. The discharge process plays a role in reducing the pressure of the pressure-resistant box 41, thereby reducing the influence of the pressure on the pressure-resistant box 41. The top wall of the hollow base 44 is provided with a third through hole, and a second sealing bearing is arranged in the third through hole. The bottom end of the rotating shaft 33 is inserted into the second through hole, so that the second sealing bearing is sleeved on the outer surface of the rotating shaft 33. This is conducive to making the steam in the hollow base 44 enter the stirring pipe 34 through the gas cavity at the bottom end of the rotating shaft 33 and flow back into the sealed cover 7 through the gas cavity at the top end of the rotating shaft 33. In this way, the steam can heat the stirring pipe 34 during use, which is conducive to heating the bauxite in contact with the stirring pipe 34 during stirring.

[0023] Further, the feeding valve 8 is inserted into the third through hole and the fourth through hole formed on the top wall of the treatment tank 1 and the sealing cover 7, so that the bauxite is introduced into the treatment tank 1; the inlet end of the discharging valve 9 is inserted into the fifth through hole and the sixth through hole formed on the hollow base 44 and the treatment tank 1, so that the material after heating is discharged from the treatment tank 1.

[0024] In the embodiment, the bauxite is introduced into the treatment tank 1 through the feeding valve 8, the steam is transported to the space below the pressure-resistant box 41 through the external conveying pipe 42, the steam enters the hollow base 44 under the guidance of the first air pipe 43, and passes through the opening at the bottom of the heating cylinder 2 and the air cavity at the bottom end of the rotating shaft 33, so that the whole enters the sealing cover 7 through the heating cylinder 2, the rotating shaft 33 and the stirring pipe 34, the heating of the heating cylinder 2, the rotating shaft 33 and the stirring pipe 34 is realized, and the bauxite in the heating cylinder 2 can be heated through the heating cylinder 2, the rotating shaft 33 and the stirring pipe 34, the steam entering the sealing cover 7 can flow back into the pressure-resistant box 41 under the arrangement of the second air pipe 45 and be stored in the space above the pressure-resistant box 41, so as to flow back into the space below the pressure-resistant box 41 under the opening state of the electromagnetic air valve 46, so as to realize the recycling in this way, improve the uniformity during heating, reduce the waste caused by the use of steam, and when the pressure in the space above the pressure-resistant box 41 is large, the recovered steam can be discharged to other equipment through the exhaust pipe, so as to complete the pressure reduction and achieve the purpose of saving resources. Then, the motor 31 is started to drive the connecting piece 32 to rotate the rotating shaft 33, so that the stirring pipe 34 stirs the bauxite under the driving of the rotating shaft 33. Since the stirring pipe 34 and the rotating shaft 33 are heated during the circulation of the steam, the bauxite in contact with the stirring pipe 34 and the rotating shaft 33 can be heated and treated, so as to reduce the uneven heating of the bauxite far away from the inner wall of the heating cylinder 2 and the bauxite close to the stirring pipe 34, and further improve the uniformity during heating in the stirring process, so as to facilitate the subsequent desiliconization treatment.

[0025] The above specific embodiments are only several preferred embodiments of the utility model, and based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A low-grade bauxite beneficiation desilication device comprising a treatment tank (1), characterized in that: The inside of the processing tank (1) is provided with a heating cylinder (2), the processing tank (1) is provided with a stirring assembly (3), the stirring assembly (3) comprises a motor (31), the output end of the motor (31) is connected with a connecting piece (32), the bottom of the connecting piece (32) is connected with a rotating shaft (33), the rotating shaft (33) is provided with a stirring pipe (34), the processing tank (1) is provided with a gas supply assembly (4), the gas supply assembly (4) comprises a pressure tank (41), the outlet of the pressure tank (41) is connected with a first gas pipe (43), the gas outlet end of the first gas pipe (43) is connected with a hollow base (44), the inlet of the pressure tank (41) is connected with a second gas pipe (45), the pressure tank (41) is provided with an electromagnetic valve (46), the top wall of the processing tank (1) is provided with a sealing cover (7).

2. A low grade bauxite beneficiation desilication device according to claim 1, characterized in that, The inside wall of the heating cylinder (2) is provided with a heat conducting cavity, the heat conducting cavity is arranged in a spring state, the top gas outlet of the hollow base (44) corresponds to the opening position of the bottom of the heating cylinder (2).

3. A low grade bauxite beneficiation desilication device according to claim 1, characterized in that, The top wall of the processing tank (1) is provided with a first through hole, the position of the first through hole corresponds to the positioning opening position of the heating cylinder (2), and the first through hole is arranged in the sealing cover (7).

4. A low grade bauxite beneficiation desilication device according to claim 1, characterized in that, The top end and the bottom end of the motor (31) are provided with air cavities, the rotating shaft (33) is provided with a second through hole, the stirring pipe (34) is arranged in the second through hole, and the air inlet end and the air outlet end of the stirring pipe (34) are communicated with the position corresponding air cavities.

5. A low grade bauxite beneficiation desilication device as claimed in claim 1, wherein, The side wall of the pressure tank (41) is connected with an external conveying pipe (42), the top wall of the pressure tank (41) is provided with a pressure valve table (5), and the side wall of the processing tank (1) is provided with a controller (6).

6. A low grade bauxite beneficiation desilication device as claimed in claim 1, wherein, The top wall of the processing tank (1) and the feed valve (8) is respectively provided with a third through hole and a fourth through hole, and the third through hole and the fourth through hole are provided with the feed valve (8).

7. A low grade bauxite beneficiation desilication device as claimed in claim 1, characterized in that, The hollow base (44) and the bottom wall of the processing tank (1) are provided with a fifth through hole and a sixth through hole, and the fifth through hole and the sixth through hole are provided with a discharge valve (9).

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