Recovery system for refractory ore ball-milling spit blocks

Abstract

The refractory ore ball-milling spit block recovery system sequentially comprises a cleaning box, a roller mill, a powder concentrator, a slurry making pool, a ball mill and a sedimentation pool, the cleaning box is used for cleaning the ball-milling spit blocks, the roller mill is used for carrying out roller milling on the ball-milling spit blocks to crush the ball-milling spit blocks into disintegrating slag, the powder concentrator is used for selecting qualified products from the disintegrating slag, and the slurry making pool is used for making slurry. The slurry making tank is used for making a finished product into ore pulp, the ball mill is used for grinding and selecting the ore pulp to obtain concentrated ore pulp, and the settling tank is used for settling the concentrated ore pulp and is connected with the discharging pipe. The ball-milling spitted blocks are cleaned through the cleaning box and then crushed through the roller mill, the crushing effect is good, the crushed ball-milling spitted blocks are subjected to slurry making, wet grinding is conducted again after slurry making, the ball-milling spitted blocks are recycled, the treated ball-milling spitted blocks are suitable for refined iron machining, and the production efficiency is improved. In the whole process, the conveying belt, the conveying pipe and the slurry conveying pipe are adopted for conveying materials efficiently and quickly, and manpower is greatly saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgy and relates to a recovery system for ball mill discharge blocks of refractory ores. Background Art

[0002] After refractory iron ores are magnetically roasted, the ball mill discharge blocks are ground and dissociated in a ball mill. Among them, some blocks with relatively high hardness cannot be ground by the ball mill and are "discharged" from the ball mill, which are called ball mill discharge blocks. The ball mill discharge blocks have uniform particle size, 100% of which have a particle diameter of 1-2 mm, a grade of about 33.5%, and a moisture content of less than 2% after washing the ore mud with water. They are excellent semi-finished products in the process of processing iron concentrate. At present, there are still the following problems in recycling the ball mill discharge blocks. At present, most of the ball mill discharge blocks are not recycled reasonably. Usually, after collection, they are sent to the waste rock mountain through a belt and become solid waste, resulting in waste of resources. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a recovery system for ball mill discharge blocks of refractory ores in view of the problem that the ball mill discharge blocks are directly discarded in the background art, resulting in waste of resources.

[0004] For this reason, the utility model adopts the following technical solutions:

[0005] A recovery system for ball mill discharge blocks of refractory ores successively includes a cleaning tank, a roller mill, a powder separator, a pulp making tank, a ball mill and a sedimentation tank, wherein:

[0006] The cleaning tank is used for cleaning the ball mill discharge blocks. The cleaning tank is connected with a water inlet pipe. The bottom of the cleaning tank is provided with a water delivery hole, and the water delivery hole is connected with a water outlet pipe. A first filter screen is arranged at the water delivery hole, and a water outlet valve is arranged on the water outlet pipe;

[0007] The roller mill is used for roller grinding the ball mill discharge blocks into slag. A conveyor belt is arranged between the roller mill and the cleaning tank;

[0008] The powder separator is used for selecting qualified products from the slag

[0009] The pulp making tank is used for making the finished products into ore pulp. A feeding pipe is connected between the pulp making tank and the powder separator;

[0010] The ball mill is used for grinding and separating the ore pulp to obtain a selected ore pulp. A slurry conveying pipe is connected between the ball mill and the pulp making tank. A slurry conveying pump is arranged on the slurry conveying pipe, and the ball mill is connected with a discharge pipe;

[0011] The sedimentation tank is used for sedimenting the selected ore pulp. The sedimentation tank is connected with the discharge pipe.

[0012] Further, a bucket elevator is provided between the powder separator and the roller mill.

[0013] Further, the powder separator is connected with a bag filter.

[0014] Further, a filter box with an up-and-down through structure is provided in the sedimentation tank. The filter box is located in the upper part of the sedimentation tank. A second filter screen is provided in the filter box, and the discharge pipe is connected to the filter box.

[0015] The beneficial effects of the present utility model are as follows: After the ball mill lumps are cleaned by the cleaning tank, they are crushed by a roller mill with good crushing effect. The crushed ball mill lumps are made into pulp, and then wet-ground again to complete the recycling treatment of the ball mill lumps. The treated ball mill lumps are suitable for fine iron processing, effectively saving resources, protecting the environment, and reducing pollution; the whole process uses a conveyor belt, a feeding pipe, and a slurry conveying pipe to transport materials, which is efficient and fast, and greatly saves labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is Figure 1 a partial enlarged view of part A in

[0018] In the figure, 1 - cleaning tank, 2 - water inlet pipe, 3 - water delivery hole, 4 - water outlet pipe, 5 - first filter screen, 6 - water outlet valve, 7 - roller mill, 8 - conveyor belt, 9 - powder separator, 10 - bucket elevator, 11 - bag filter, 12 - pulping tank, 13 - feeding pipe, 14 - ball mill, 15 - slurry conveying pipe, 16 - slurry pump, 17 - discharge pipe, 18 - sedimentation tank, 19 - filter box, 20 - second filter screen. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be described in detail below with reference to the accompanying drawings:

[0020] As Figure 1 and 2 shown, a recovery system for difficult-to-select ore ball mill lumps successively includes a cleaning tank, a roller mill, a powder separator, a pulping tank, a ball mill, and a sedimentation tank, wherein:

[0021] The cleaning tank 1 is used to clean the ball mill discharge. The ball mill discharge can be placed in the cleaning tank 1 and washed with water to wash the ore sludge on the ball mill discharge clean. The cleaning tank 1 is connected with a water inlet pipe 2, and water can be conveyed into the cleaning tank 1 through the water inlet pipe 2 to facilitate the cleaning of the ball mill discharge. A water discharge hole 3 is provided at the bottom of the cleaning tank 1, and the water discharge hole 3 is connected with a water outlet pipe 4. The water outlet pipe 4 can discharge the water after cleaning from the cleaning tank 1. A first filter screen 5 is provided at the water discharge hole 3. The first filter screen 5 can prevent some of the ball mill discharge from being discharged together with the water during drainage, causing waste. A water outlet valve 6 is provided on the water outlet pipe 4.

[0022] The roller mill 7 is used to roll and crush the cleaned ball mill discharge into slag. The roller mill 7 can use an existing conventional roller mill. The roller mill is suitable for harder ores and has a good treatment effect on the ball mill discharge. A conveyor belt 8 is provided between the roller mill 7 and the cleaning tank 1. Through the conveyor belt 8, the cleaned ball mill discharge can be conveyed to the roller mill 7 for treatment, which is convenient and fast.

[0023] The powder separator 9 is used to select finished products from the slag. The powder separator 9 can use an existing conventional slag powder separator. The powder separator 9 is arranged on one side of the roller mill 7. A bucket elevator 10 is provided between the powder separator 9 and the roller mill 7. Through the bucket elevator 10, the slag obtained by crushing the roller mill 7 can be input into the powder separator 9 for screening. The air outlet of the powder separator 9 is connected with a bag filter 11. The bag filter 11 can collect the dust discharged from the air outlet of the powder separator 9 to prevent pollution to the surrounding environment. At the same time, it can also collect some of the finished products discharged with the dust to prevent waste.

[0024] The pulp making tank 12 is used to make the finished products into ore pulp. The pulp making tank 12 can use an existing pulp making tank. A feeding pipe 13 is connected between the pulp making tank 12 and the powder separator 9. The feeding pipe 13 is connected with the finished product discharging port of the powder separator 9. The finished products selected by the powder separator 9 can be directly input into the pulp making tank 12 through the feeding pipe 13 for pulp making.

[0025] The ball mill 14 is used to grind and select the ore pulp to obtain the refined ore pulp. A slurry conveying pipe 15 is connected between the ball mill 14 and the pulp making tank 12. A slurry pump 16 is provided on the slurry conveying pipe 15. Under the action of the slurry pump 16, the ore pulp in the pulp making tank 12 can be input into the ball mill 14 through the slurry conveying pipe 15 for grinding and selection. The ball mill 14 is connected with a discharge pipe 17. Through the discharge pipe 17, the refined ore pulp can be output from the ball mill 14.

[0026] The sedimentation tank 18 is used to precipitate the selected ore pulp, and then the raw material is selected. The sedimentation tank 18 is connected to the discharge pipe 17. The selected ore pulp discharged from the ball mill 14 can be directly input into the sedimentation tank 18 through the discharge pipe 17. Specifically, a filter box 19 with an up and down through structure is provided on the upper side of the sedimentation tank 18. A second filter screen 20 is provided in the filter box 19. The discharge pipe 17 is connected to the filter box 19. The selected ore pulp discharged through the discharge pipe 17 is first discharged into the filter box 19 and filtered through the second filter screen 20. The selected ore pulp is screened again and then precipitated. After precipitation, the clean water above the sedimentation tank 18 is discharged to obtain the raw material for iron ore concentrate processing.

[0027] The usage of the utility model is as follows:

[0028] First, the collected ball mill spit blocks are placed in a cleaning box 1, and water is supplied to the cleaning box 1 through a water inlet pipe to clean the ball mill spit blocks, and the ore mud on the surface of the ball mill spit blocks is rinsed clean, and then the ball mill spit blocks are fished out of the cleaning box 1 and transported to the roller mill 7 through a conveyor belt 8 for roller grinding. At this time, the outlet valve 6 can be opened to discharge the sewage in the cleaning box 1 through the outlet pipe for subsequent use. The ball mill spit blocks are crushed into slag by the roller mill 7, and then the slag is input into the powder selector 9 through a bucket elevator 10 for screening, and the finished product is selected, and the selected finished product is transported through the feed pipe 13 The slurry is made in the slurry making tank 12 to obtain slurry, and then the slurry pump 16 is started. Under the action of the slurry pump 16, the slurry in the slurry making tank 12 can be input into the ball mill 14 through the slurry pipe 15 for ball milling. The slurry is ground and selected by wet grinding, so that the finished product in the slurry is broken again. Finally, the slurry after ball milling is discharged into the filter box 19 of the sedimentation tank 18 through the discharge pipe 17. After filtering through the second filter screen 20, the slurry is precipitated in the sedimentation tank 18. After a period of precipitation, the clean water above the sedimentation tank 18 is discharged to obtain the raw material for iron ore concentrate processing.

[0029] This system can process ball mill spit quickly. Compared with the traditional method, it is efficient and fast, which can greatly save manpower. The processed ball mill spit is suitable for refined iron processing.

Claims

1. A refractory ore mill block recovery system, characterized in that: The invention comprises, in sequence, a cleaning tank (1), a roller mill (7), a powder classifier (9), a slurry making tank (12), a ball mill (14) and a sedimentation tank (18), wherein: A cleaning box (1), the cleaning box (1) being used for cleaning ball mill spit blocks, the cleaning box (1) being connected to a water inlet pipe (2), a water delivery hole (3) being provided at the bottom of the cleaning box (1), the water delivery hole (3) being connected to a water outlet pipe (4), a first filter screen (5) being provided at the water delivery hole (3), and a water outlet valve (6) being provided on the water outlet pipe (4); A roller mill (7), the roller mill (7) being used to perform roller milling on the ball mill spit into crushed slag, and a conveyor belt (8) is provided between the roller mill (7) and the cleaning box (1); A powder classifier (9), the powder classifier (9) being used to select qualified products from the crushed slag; A pulping tank (12), the pulping tank (12) being used to make the finished product into pulp, and a feed pipe (13) being connected between the pulping tank (12) and the powder classifier (9); A ball mill (14), the ball mill (14) being used to grind ore pulp to obtain selected ore pulp, a slurry delivery pipe (15) being connected between the ball mill (14) and the slurry making pool (12), a slurry delivery pipe (15) being provided with a slurry delivery pump (16), and the ball mill (14) being connected to a discharge pipe; A sedimentation tank (18), wherein the sedimentation tank (18) is used to sediment the selected ore pulp, and the sedimentation tank (18) is connected to the discharge pipe.

2. A refractory ore mill spit block recovery system according to claim 1, characterized in that: A bucket elevator (10) is provided between the powder classifier (9) and the roller mill (7).

3. A refractory ore ball mill spit block recovery system according to claim 1, characterized in that: The powder classifier (9) is connected to a bag dust collector (11).

4. The refractory ore ball mill spit block recovery system according to claim 1 is characterized in that: A filter box (19) having an up-and-down penetrating structure is provided in the sedimentation tank (18); the filter box (19) is located at the upper part of the sedimentation tank (18); a second filter screen (20) is provided in the filter box (19); and the discharge pipe is connected to the filter box (19).

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