Beryllium-containing ore compound grinding and screening device

Abstract

The utility model relates to the technical field of beryllium-containing mineral aggregate grinding and screening, in particular to a beryllium-containing mineral compound grinding and screening device. The beryllium-containing mineral compound grinding and screening device comprises a fire grate, a detachable screen is arranged in a feeding port of the fire grate, a material collecting box is fixedly installed at a discharging port of the fire grate, a powerful magnetic bar is installed on the material collecting box, and magnetic impurities in ground beryllium-containing mineral aggregate are adsorbed through the powerful magnetic bar. An annular groove is formed in a feeding port of the fire grate, and a plurality of annular air rings distributed at equal intervals are fixedly embedded in the annular groove. According to the beryllium-containing mineral compound grinding and screening device, due to the fact that the annular air ring is of an elastic structure, the hidden danger that connection or sealing of the screen mesh and the fire grate fails due to vibration of the fire grate is eliminated in the structural form, and leakage of beryllium-containing mineral aggregate is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to beryllium-containing ore grinding and screening technical field, especially to a beryllium-containing ore grinding and screening device. BACKGROUND

[0002] Beryllium (Be) has high strength, high elastic modulus, small density and other characteristics, and beryllium also has good thermal shock resistance and thermal diffusion and very small thermal expansion coefficient. Beryllium is one of the indispensable materials for nuclear power plants and other nuclear facilities, and is also an important aerospace material. Beryllium mainly exists in beryl and beryllosite, and beryl has less impurity content, which is the main raw material for beryllium ore smelting.

[0003] At present, when processing its ore (such as beryl), the ore is first crushed to 10-50mm by using a jaw crusher or a cone crusher, and then fine grinding is carried out by a ball mill. The filter screen on the grate of the ball mill is rigidly connected by screws, which can easily cause the filter screen to fail due to vibration of the ball mill, and thus some non-conforming (non-compliant ore) ore can overflow, affecting the quality of the finished product. In addition, beryllium ore often contains magnetic minerals (such as magnetite), which requires an additional magnetic separation process. The existing equipment often separates grinding and magnetic separation, which is complicated and inefficient.

[0004] Therefore, it is necessary to provide a new beryllium-containing ore grinding and screening device to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the utility model provides a beryllium-containing ore grinding and screening device.

[0006] The beryllium-containing ore grinding and screening device provided by the utility model comprises a grate, a detachable screen is arranged in the feed inlet of the grate, a material collecting box is fixedly installed at the discharge outlet of the grate, a plurality of strong magnetic rods are installed on the material collecting box in parallel and are threadedly connected, and the strong magnetic rods are used to adsorb magnetic impurities in the beryllium-containing ore after grinding.

[0007] An annular groove is formed in the feed inlet of the grate, and a plurality of annular air rings are fixedly embedded in the annular groove in equidistant distribution.

[0008] Preferably, an installation ring is fixedly installed on the outer wall of the screen, when the installation ring is inserted into the annular groove formed in the grate, the annular air rings expand, extend and fill the gap between the installation ring and the annular groove under the pressure of the outer ring wall of the installation ring.

[0009] Preferably, two symmetrically distributed and axially arranged insertion grooves are formed in the pipe wall at the feeding port end of the grate, the outer ring wall of the mounting ring is fixedly embedded with two symmetrically distributed and axially arranged sliding strips, and the two sliding strips are respectively inserted into the two insertion grooves formed in the grate and are in sliding connection with the insertion grooves.

[0010] Preferably, a locking hole penetrating through the grate is formed in the insertion groove, a butt joint hole penetrating through the mounting ring is formed in the sliding strip, and a retreat-stopping steel wire is inserted into the mounting ring and sequentially passes through the butt joint hole and the locking hole.

[0011] Preferably, a plurality of equidistantly distributed and side-by-side arranged threaded ring grooves are formed in the top of the aggregate tank, and an insertion hole coaxially arranged and in communication with the aggregate tank is formed in the bottom of each threaded ring groove.

[0012] Preferably, a threaded disc is fixedly installed at the top of the strong magnetic rod, the threaded disc is in threaded connection with the threaded ring groove, and a handle is fixedly installed on the threaded disc.

[0013] Preferably, the bottom of the aggregate tank is in a slope shape and is provided with a discharge valve.

[0014] Preferably, the grate is fixedly provided with a butt joint flange.

[0015] Preferably, a groove in communication with the locking hole is formed in the outer pipe wall at the feeding port end of the grate.

[0016] Compared with the related art, the beryllium-containing ore compound grinding and screening device has the following beneficial effects:

[0017] 1. According to the present application, the screen mesh with a pore size adapted to the requirement is selected, and then the mounting ring is inserted into the annular groove. With the pressing of the annular air ring by the mounting ring, the annular air ring effectively clamps the mounting ring, so that the screen mesh is quickly installed on the grate. When the screen mesh needs to be replaced or maintained, the mounting ring can be pulled out, and the operation is simple and convenient. Since the annular air ring is of an elastic structure, the hidden danger of connection failure or sealing failure of the screen mesh and the grate caused by the vibration of the grate is eliminated, and the leakage of the beryllium-containing ore is avoided.

[0018] 2. In the present application, the magnetic ore can be adsorbed on the strong magnetic rod, so that the magnetic ore in the beryllium-containing ore is screened. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural schematic view of a preferred embodiment of the beryllium-containing ore compound grinding and screening device provided by the present application;

[0020] Figure 2 FIG. 2 is an exploded structural schematic view of the beryllium-containing ore compound grinding and screening device provided by the present application; Figure 1 FIG. 3 is an explosive structural schematic view of the beryllium-containing ore compound grinding and screening device provided by the present application.

[0021] Figure 3 As Figure 2 the cross-sectional structure schematic view of the grate shown in the figure;

[0022] Figure 4 As Figure 2 the structure schematic view of the screen shown in the figure;

[0023] Figure 5 As Figure 2 the structure schematic view of the strong magnetic bar shown in the figure;

[0024] Figure 6 As Figure 2 the structure schematic view of the stop steel wire shown in the figure.

[0025] Figure label: 1, grate; 1a, annular groove; 1b, plug-in slot; 1c, locking hole; 1d, groove; 11, butt flange; 2, screen; 21, mounting ring; 22, sliding bar; 22a, butt hole; 3, material collecting box; 3a, threaded ring groove; 3b, plug-in hole; 31, discharge valve; 4, annular air ring; 5, strong magnetic bar; 51, threaded disc; 52, handle; 6, stop steel wire. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0027] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0028] Please refer to Figures 1 to 6 , the utility model embodiment provides a kind of beryllium-containing mineral compound grinding screen device, the beryllium-containing mineral compound grinding screen device includes grate 1, screen 2, material collecting box 3 and strong magnetic bar 5.

[0029] In the embodiment of the utility model, please refer to Figures 1 to 6 , butt flange 11 is fixedly installed on grate 1, and the feed inlet of grate 1 is provided with detachable screen 2, specifically, annular groove 1a is formed in the feed inlet of grate 1, and a plurality of equidistant annular air rings 4 are fixedly embedded in annular groove 1a, and mounting ring 21 is fixedly installed on the outer wall of screen 2, when mounting ring 21 is inserted into the annular groove 1a formed in grate 1, annular air ring 4 expands, extends transversely and fills the gap between mounting ring 21 and annular groove 1a under the pressure of the outer ring wall of mounting ring 21.

[0030] It should be noted that: according to the demand, the screen 2 with the aperture is selected, then the mounting ring 21 is inserted into the annular groove 1a, and the annular air ring 4 is expanded and extended transversely and fills the gap between the mounting ring 21 and the annular groove 1a as the mounting ring 21 is pressed against the annular air ring 4, so that the annular air ring 4 effectively clamps the mounting ring 21, thereby realizing the quick installation of the screen 2 on the grate 1, and when the screen 2 is replaced or maintained, the mounting ring 21 only needs to be pulled out, which is simple and convenient to operate.

[0031] Since the annular air ring 4 is an elastic structure, the hidden danger of connection failure or sealing failure of the screen 2 and the grate 1 caused by vibration of the grate 1 is eliminated in the structure form, and the leakage of the beryllium-containing mineral material is avoided.

[0032] It should be further noted that: after the screen 2 is installed, the pipe body at the feed inlet end of the grate 1 is inserted into the discharge port of the ball mill, and then the butt flange 11 and the connecting flange on the ball mill are fixed by bolts, so that the installation of the grate 1 is completed, and after the ball mill grinds the beryllium-containing minerals (such as beryl, beryllosilicate, etc.) and associated minerals (such as quartz, feldspar, etc.), the required mineral material can overflow from the screen 2 and fall into the collection box 3 for collection.

[0033] Further, two symmetrically distributed and axially arranged insertion grooves 1b are formed in the pipe wall at the feed inlet end of the grate 1, and two symmetrically distributed and axially arranged sliding bars 22 are fixedly embedded on the outer ring wall of the mounting ring 21, and the two sliding bars 22 are respectively inserted into the two insertion grooves 1b formed in the grate 1 and are in sliding connection with the insertion grooves 1b. When the screen 2 is installed, the sliding bar 22 provided on the mounting ring 21 is slid along the insertion groove 1b, which on the one hand improves the stability of the installation of the screen 2, and on the other hand avoids the hidden danger of rotation of the mounting ring 21 in the grate 1.

[0034] Further, the locking hole 1c penetrating through the grate 1 is formed in the insertion groove 1b, the butt joint hole 22a penetrating through the mounting ring 21 is formed in the sliding bar 22, the retreat stop steel wire 6 is inserted into the mounting ring 21, and the retreat stop steel wire 6 passes through the butt joint hole 22a and the locking hole 1c in sequence, and the recess 1d in communication with the locking hole 1c is formed in the outer pipe wall at the feed inlet end of the grate 1. After the screen 2 is installed, the retreat stop steel wire 6 is passed through the butt joint hole 22a and the locking hole 1c, and then the retreat stop steel wire 6 is bent to be attached to the recess 1d, thereby further improving the stability of the installation of the screen 2 in the grate 1.

[0035] In order to avoid the problem that the elasticity of the annular air ring 4 may decrease due to long-term pressure, the annular air ring 4 is made of fatigue-resistant rubber material.

[0036] In the embodiment of the utility model, please refer to Figures 1 to 6The discharge port of the grate 1 is fixedly provided with a collecting box 3, the bottom of the collecting box 3 is in a slope shape and is provided with a discharge valve 31, a plurality of strong magnetic rods 5 are arranged side by side on the collecting box 3 and are threadedly connected, the strong magnetic rods 5 are used for adsorbing magnetic impurities in the beryllium-containing ore after grinding, specifically, a plurality of thread ring grooves 3a are arranged side by side and are equidistantly distributed on the top of the collecting box 3, the bottom of each thread ring groove 3a is provided with a plug hole 3b which is coaxially arranged and is communicated with the collecting box 3, the top of the strong magnetic rod 5 is fixedly provided with a thread disc 51, the thread disc 51 is threadedly connected with the thread ring groove 3a, and a handle 52 is fixedly arranged on the thread disc 51.

[0037] It should be noted that when the strong magnetic rod 5 is installed, the strong magnetic rod 5 is inserted into the collecting box 3 from the plug hole 3b and is threadedly connected with the thread ring groove 3a on the collecting box 3 by the thread disc 51, so that the magnetic ore after grinding can be adsorbed on the strong magnetic rod 5, thereby screening the magnetic ore in the beryllium-containing ore.

[0038] In order to improve the performance of the strong magnetic rod 5, the strong magnetic rod 5 can be optimized into an electromagnet, so that the magnetic strength of the electromagnet can be controlled according to the demand.

[0039] In the embodiment, the diameter of the strong magnetic rod 5 is smaller than the plug hole 3b, so that when the strong magnetic rod 5 is taken out, the magnetic substances adsorbed on the strong magnetic rod 5 are less likely to fall into the plug hole 3b.

[0040] The circuit and the control involved in the utility model are prior art, and will not be described in detail here.

[0041] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the content of the utility model specification and the drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A grinding and screening device for beryllium-containing minerals, characterized in that, Includes a grate (1), the grate (1) is provided with a detachable screen (2) in the feed inlet, and a collection box (3) is fixedly installed at the discharge outlet of the grate (1). Multiple strong magnetic rods (5) are installed on the collection box (3) arranged side by side and threaded together. The strong magnetic rods (5) adsorb magnetic impurities in the beryllium-containing ore after grinding. The grate (1) has an annular groove (1a) in its feed inlet, and multiple annular gas rings (4) are fixedly embedded in the annular groove (1a).

2. The beryllium-containing mineral grinding and screening device according to claim 1, characterized in that, An installation ring (21) is fixedly installed on the outer ring wall of the screen (2). When the installation ring (21) is inserted into the annular groove (1a) opened in the grate (1), the annular gas ring (4) expands laterally, extends and fills the gap between the installation ring (21) and the annular groove (1a) under the action of the pressure of the outer ring wall of the installation ring (21).

3. The beryllium-containing mineral grinding and screening device according to claim 2, characterized in that, The grate (1) has two symmetrically distributed and axially arranged insertion slots (1b) on the pipe wall at the feed inlet end. The outer ring wall of the mounting ring (21) is fixedly fitted with two symmetrically distributed and axially arranged sliding strips (22), and the two sliding strips (22) are respectively inserted into the two insertion slots (1b) of the grate (1) and slidably connected to the insertion slots (1b).

4. The grinding and screening device for beryllium-containing minerals according to claim 3, characterized in that, The insertion slot (1b) is provided with a locking hole (1c) that passes through the grate (1), and the sliding strip (22) is provided with a docking hole (22a) that passes through the mounting ring (21). A backlash wire (6) is inserted into the mounting ring (21), and the backlash wire (6) passes through the docking hole (22a) and the locking hole (1c) in sequence.

5. The grinding and screening device for beryllium-containing minerals according to claim 1, characterized in that, The top of the collection box (3) is provided with multiple equally spaced and side-by-side threaded annular grooves (3a), and the bottom of each threaded annular groove (3a) is provided with an insertion hole (3b) that is coaxially arranged and communicates with the collection box (3).

6. The grinding and screening device for beryllium-containing minerals according to claim 5, characterized in that, The top of the powerful magnetic rod (5) is fixedly mounted with a threaded disc (51), and the threaded disc (51) is threadedly connected to the threaded ring groove (3a). A handle (52) is fixedly mounted on the threaded disc (51).

7. The grinding and screening device for beryllium-containing minerals according to claim 1, characterized in that, The bottom of the collection box (3) is sloping and is equipped with a discharge valve (31).

8. The grinding and screening device for beryllium-containing minerals according to claim 1, characterized in that, A connecting flange (11) is fixedly installed on the grate (1).

9. The grinding and screening device for beryllium-containing minerals according to claim 1, characterized in that, The outer tube wall of the grate (1) at the feed inlet end is provided with a groove (1d) that communicates with the locking hole (1c).

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