Slag particle grinding equipment

Abstract

The utility model relates to the technical field of grinding equipment, and provides slag particle grinding equipment which comprises an upper grinding disc and a lower grinding disc which are oppositely arranged, a groove is formed in the inner end face of the upper grinding disc and comprises a bottom wall and a first side wall inclining outwards, a first rough grinding area is formed by the bottom wall, and a first fine grinding area is formed by the first side wall. The inner end face of the lower grinding disc is provided with a boss matched with the groove, the boss comprises a top wall and a second side wall inclining outwards, the top wall forms a second rough grinding area, and the second side wall forms a second fine grinding area. Coarse grinding media are embedded in the first coarse grinding area and the second coarse grinding area, fine grinding media are embedded in the first fine grinding area and the second fine grinding area, and the size of the coarse grinding media is larger than that of the fine grinding media. According to the slag particle grinding equipment provided by the utility model, the defects of low grinding efficiency and poor grinding effect of the existing slag grinding equipment are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a slag particle grinding equipment. Background Art

[0002] As an important by-product of the steel industry, slag is rich in metal and non-metal resources. In the steel production process, about 1 ton to several tons of slag are generated for every ton of steel produced. The composition of slag is complex, containing valuable resources such as iron oxides, silicates, and aluminates. The grinding of slag plays a vital role in fully tapping its intrinsic value. The metal oxides and other valuable minerals in the slag often need to be ground to a certain fineness in order to more effectively carry out the subsequent physical or chemical extraction process.

[0003] At present, conventional slag grinding equipment generally uses two grinding discs that are arranged opposite to each other and can rotate relative to each other to grind the slag. However, the existing slag grinding equipment has low grinding efficiency, high energy consumption, and poor grinding effect, resulting in a low extraction rate of metal oxides. Utility Model Content

[0004] The utility model provides a slag particle grinding device, which is used to solve the defects of low grinding efficiency and poor grinding effect of the existing slag grinding equipment.

[0005] The utility model provides a slag particle grinding device, comprising: an upper grinding disc and a lower grinding disc arranged opposite to each other; a groove is provided on the inner end surface of the upper grinding disc, the groove comprises a bottom wall and a first side wall inclined outwards, the bottom wall forms a first coarse grinding area, and the first side wall forms a first fine grinding area; the inner end surface of the lower grinding disc is provided with a boss matching the groove, the boss comprises a top wall and a second side wall inclined outwards, the top wall forms a second coarse grinding area, and the second side wall forms a second fine grinding area.

[0006] The first coarse grinding zone and the second coarse grinding zone are both embedded with coarse grinding media, the first fine grinding zone and the second fine grinding zone are both embedded with fine grinding media, and the size of the coarse grinding media is larger than the size of the fine grinding media.

[0007] According to the slag particle grinding equipment provided by the utility model, the inner end surface edge of the upper grinding disk forms a first fine grinding area, and the inner end surface edge of the lower grinding disk forms a second fine grinding area. The first fine grinding area and the second fine grinding area are both embedded with fine grinding media, and the size of the fine grinding media is smaller than the size of the fine grinding media.

[0008] According to the slag particle grinding equipment provided by the utility model, the coarse grinding medium is a coarse grinding ball, and the coarse grinding ball is rotatably embedded in the first coarse grinding area and the second coarse grinding area; the fine grinding medium is a fine grinding ball, and the fine grinding ball is rotatably embedded in the first fine grinding area and the second fine grinding area; the fine grinding medium is a fine grinding ball, and the fine grinding ball is rotatably embedded in the first coarse grinding area and the second coarse grinding area.

[0009] According to the slag particle grinding equipment provided by the utility model, a discharge channel is provided at the bottom of the lower grinding disc, and an inlet end of the discharge channel is connected to the second fine grinding area.

[0010] According to the slag particle grinding equipment provided by the utility model, the bottom wall and the top wall are arranged to be inclined downward in a direction radially outward from the center.

[0011] The slag particle grinding equipment provided by the utility model further comprises a fixed bracket, and at least the upper grinding disc among the upper grinding disc and the lower grinding disc is rotatably connected to the fixed bracket.

[0012] According to the slag particle grinding equipment provided by the utility model, the upper grinding disc and the lower grinding disc are both rotatably connected to the fixed bracket; it also includes a driving mechanism, and the driving mechanism includes a first driving motor and a second driving motor, the output end of the first driving motor is transmission-connected to the upper grinding disc, and the output end of the second driving motor is transmission-connected to the lower grinding disc.

[0013] According to the slag particle grinding equipment provided by the utility model, the output end of the first drive motor is connected to the upper grinding disc by a belt transmission, and the output end of the second drive motor is connected to the lower grinding disc by a belt transmission.

[0014] According to the slag particle grinding equipment provided by the utility model, a feed channel is provided on the upper grinding disc, and an outlet end of the feed channel is communicated with the first coarse grinding area.

[0015] The slag particle grinding equipment provided by the utility model also includes an air cooling mechanism, which includes a fan and an air supply pipe. The air outlet of the fan is connected to the inlet of the air supply pipe, and the outlet of the air supply pipe is connected to the upper grinding disc.

[0016] The slag particle grinding equipment provided by the utility model, after the slag particle material is fed between the first coarse grinding zone and the second coarse grinding zone, the upper grinding disc and the lower grinding disc rotate relatively to perform coarse grinding on the slag particle material. In this process, the slag particle material with a larger particle size is ground into slag particle material with a relatively smaller particle size by the coarse grinding medium with a larger size, and enters the first fine grinding zone and the second fine grinding zone through the edges of the first coarse grinding zone and the second coarse grinding zone. The particle size of the slag particle material continues to decrease under the grinding action of the fine grinding medium, and gradually slides down along the inclined side wall. The slag particle grinding equipment provided by the utility model can perform coarse grinding and fine grinding on the slag particle material by arranging the first coarse grinding zone, the second coarse grinding zone, the first fine grinding zone and the second fine grinding zone between the relatively arranged upper grinding disc and the lower grinding disc, and the coarse grinding and fine grinding can be performed simultaneously, which greatly improves the grinding efficiency and grinding effect.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the slag particle grinding equipment provided in an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the inner end surface of the upper grinding disc in the slag particle grinding equipment provided in an embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of the inner end surface of the lower grinding disc in the slag particle grinding equipment provided in an embodiment of the utility model.

[0022] Reference numerals:

[0023] 10. Upper grinding disc; 110. First coarse grinding zone; 120. First fine grinding zone; 130. First fine grinding zone; 140. Feed channel; 20. Lower grinding disc; 210. Second coarse grinding zone; 220. Second fine grinding zone; 230. Second fine grinding zone; 240. Discharge channel; 30. Coarse grinding medium; 40. Fine grinding medium; 50. Fine grinding medium; 60. Fixed bracket; 70. First drive motor; 80. Second drive motor; 90. Fan. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0027] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0029] Combine the following Figures 1 to 3 The utility model describes the slag particle grinding equipment provided by the utility model.

[0030] See also Figures 1 to 3 As shown, the slag particle grinding equipment provided by the embodiment of the utility model includes an upper grinding disc 10 and a lower grinding disc 20 which are arranged relatively to each other; the inner end surface of the upper grinding disc 10 is provided with a groove, the groove includes a bottom wall and a first side wall inclined outward, the bottom wall forms a first coarse grinding area 110, and the first side wall forms a first fine grinding area 120; the inner end surface of the lower grinding disc 20 is provided with a boss matching the groove, the boss includes a top wall and a second side wall inclined outward, the top wall forms a second coarse grinding area 210, and the second side wall forms a second fine grinding area 220.

[0031] The first coarse grinding zone 110 and the second coarse grinding zone 210 are both embedded with coarse grinding media 30 , and the first fine grinding zone 120 and the second fine grinding zone 220 are both embedded with fine grinding media 40 . The size of the coarse grinding media 30 is larger than that of the fine grinding media 40 .

[0032] The slag particle grinding equipment provided by the utility model, after the slag particle material is sent between the first coarse grinding zone 110 and the second coarse grinding zone 210, the upper grinding disc 10 and the lower grinding disc 20 rotate relatively to perform coarse grinding on the slag particle material. In this process, the slag particle material with a larger particle size is ground into a slag particle material with a relatively smaller particle size by the coarse grinding medium 30 with a larger size, and enters the first fine grinding zone 120 and the second fine grinding zone 220 through the edges of the first coarse grinding zone 110 and the second coarse grinding zone 210. The particle size of the slag particle material continues to decrease under the grinding action of the fine grinding medium 40, and gradually slides down along the inclined side wall. The slag particle grinding equipment provided by the utility model can perform coarse grinding and fine grinding on the slag particle material by arranging the first coarse grinding zone 110, the second coarse grinding zone 210, the first fine grinding zone 120 and the second fine grinding zone 220 between the upper grinding disc 10 and the lower grinding disc 20 that are relatively arranged, and the coarse grinding and fine grinding can be performed simultaneously, which greatly improves the grinding efficiency and grinding effect.

[0033] See also Figures 1 to 3 As shown, according to some embodiments of the present invention, the inner end surface edge of the upper grinding disc 10 forms a first fine grinding area 130, and the inner end surface edge of the lower grinding disc 20 forms a second fine grinding area 230. The first fine grinding area 130 and the second fine grinding area 230 are both embedded with fine grinding media 50, and the size of the fine grinding media 50 is smaller than that of the fine grinding media 40. By forming the first fine grinding area 130 on the inner end surface edge of the upper grinding disc 10 and the second fine grinding area 230 on the inner end surface edge of the lower grinding disc 20, the finely ground slag particles can be further finely ground under the action of the fine grinding media 50, thereby further reducing the particle size of the slag particles, which is beneficial to the subsequent extraction of metal oxides in the slag particles. And the finely ground slag particles can automatically slide down to between the first fine grinding area 130 and the second fine grinding area 230 under the guidance of the sidewalls inclined outward.

[0034] See also Figures 1 to 3 As shown, according to some embodiments of the present invention, the coarse grinding medium 30 is a coarse grinding ball, which is rotatably embedded in the first coarse grinding area 110 and the second coarse grinding area 210; the fine grinding medium 40 is a fine grinding ball, which is rotatably embedded in the first fine grinding area 120 and the second fine grinding area 220; the fine grinding medium 50 is a fine grinding ball, which is rotatably embedded in the first coarse grinding area 110 and the second coarse grinding area 210. By setting the coarse grinding medium 30, the fine grinding medium 40 and the fine grinding medium 50 as grinding balls rotatably embedded in the corresponding grinding areas, the rolling action of the grinding balls can be used to fully grind the slag particle materials during grinding, thereby improving the grinding effect and the uniformity of grinding.

[0035] Specifically, the coarse grinding balls, fine grinding balls and precision grinding balls can all be made of hard alloy grinding balls, such as tungsten-cobalt alloy grinding balls, hard chrome-steel alloy grinding balls or steel grinding balls.

[0036] See also Figure 3 As shown, according to some embodiments provided by the present invention, a discharge channel 240 is provided at the bottom of the lower grinding disc 20, and the inlet end of the discharge channel 240 is connected to the second fine grinding area 230. By providing the discharge channel 240 at the bottom of the lower grinding disc 20, the finely ground material can be guided to a set position through the discharge channel 240, thereby ensuring the continuity of production.

[0037] According to some embodiments provided by the utility model, the bottom wall and the top wall are arranged to be tilted downward in the direction radially outward from the center. By arranging the bottom wall and the top wall to be tilted downward in the direction radially outward from the center, after the material enters the position between the first coarse grinding zone 110 and the second coarse grinding zone 210, it can gradually slide down to between the first fine grinding zone 120 and the second fine grinding zone 220 during the grinding process, thereby preventing the material from staying between the first coarse grinding zone 110 and the second coarse grinding zone 210 for too long. In specific implementation, the inclination angle of the bottom wall and the top wall can be set to a smaller value, such as 10° to 20°.

[0038] See also Figure 1 As shown, according to some embodiments provided by the utility model, the slag particle grinding device further includes a fixed bracket 60, and at least the upper grinding disc 10 of the upper grinding disc 10 and the lower grinding disc 20 is rotatably connected to the fixed bracket 60. By providing the fixed bracket 60, it is convenient to install and fix the upper grinding disc 10 and the lower grinding disc 20, and it is beneficial to configure at least the upper grinding disc 10 and the fixed bracket 60 to be rotatably connected.

[0039] See also Figure 1 As shown, according to some embodiments provided by the utility model, the upper grinding disc 10 and the lower grinding disc 20 are both rotatably connected to the fixed bracket 60; and a driving mechanism is also included, the driving mechanism includes a first driving motor 70 and a second driving motor 80, the output end of the first driving motor 70 is transmission-connected to the upper grinding disc 10, and the output end of the second driving motor 80 is transmission-connected to the lower grinding disc 20. By configuring the upper grinding disc 10 and the lower grinding disc 20 to be rotatably connected to the fixed bracket 60, during grinding, the upper grinding disc 10 and the lower grinding disc 20 can be driven to rotate in opposite directions by the first driving motor 70 and the second driving motor 80, respectively, thereby further improving the grinding efficiency and grinding effect.

[0040] See also Figure 1As shown, according to some embodiments provided by the utility model, the output end of the first drive motor 70 is connected to the upper grinding disc 10 by a belt transmission, and the output end of the second drive motor 80 is connected to the lower grinding disc 20 by a belt transmission. By using a belt transmission to connect the output end of the first drive motor 70 to the upper grinding disc 10 and the output end of the second drive motor 80 to the lower grinding disc 20, when the material causes the upper grinding disc 10 and the lower grinding disc 20 to get stuck, slipping can occur, thereby preventing the motors from being damaged.

[0041] See also Figure 2 As shown, according to some embodiments provided by the utility model, a feed channel 140 is provided on the upper grinding disc 10, and the outlet end of the feed channel 140 is connected to the first coarse grinding area 110. By providing a feed port connected to the first coarse grinding area 110 on the upper grinding disc 10, during production, the material can be continuously fed into the space between the upper grinding disc 10 and the lower grinding disc 20 through the feed channel 140 directly through a feeding device such as a conveyor belt, so that the continuity of production can be ensured.

[0042] See also Figure 1 As shown, according to some embodiments provided by the utility model, the slag particle grinding equipment further includes an air cooling mechanism, which includes a fan 90 and an air supply pipe, the air outlet of the fan 90 is connected to the inlet of the air supply pipe, and the outlet of the air supply pipe is connected to the upper grinding disc 10. By providing the air cooling mechanism, during the grinding operation, cold air with a relatively low temperature can be introduced into the area between the upper grinding disc 10 and the lower grinding disc 20, thereby reducing the temperature of the slag during the grinding process, avoiding slag sintering and clogging, and improving the stability and reliability of the grinding equipment.

[0043] In a specific implementation, a plurality of air outlet channels can be provided on the upper grinding disc 10, and the plurality of air outlet channels lead to the first coarse grinding zone 110, the first fine grinding zone 120 and the first fine grinding zone 130 respectively, so as to cool down the materials in the coarse grinding, fine grinding and fine grinding stages simultaneously.

[0044] It can be seen from the description of the above embodiments that the slag particle grinding equipment provided by the utility model has at least the following advantages.

[0045] (1) The slag particle grinding equipment provided by the utility model can perform coarse grinding, fine grinding and fine grinding of slag particles in sequence by arranging a first coarse grinding area 110, a second coarse grinding area 210, a first fine grinding area 120, a second fine grinding area 220, a first fine grinding area 130 and a second fine grinding area 230 between an upper grinding disc 10 and a lower grinding disc 20 that are relatively arranged, thereby significantly improving the grinding efficiency and grinding effect, and the material can move spontaneously along the coarse-fine-fine process without external interference.

[0046] (2) The slag particle grinding equipment provided by the utility model is convenient for installing and fixing the upper grinding disc 10 and the lower grinding disc 20 by providing a fixed bracket 60 and a belt transmission mechanism, and can prevent the motor from being damaged.

[0047] (3) The slag particle grinding equipment provided by the utility model is provided with an air cooling mechanism. During the grinding operation, cold air with a relatively low temperature can be introduced into the area between the upper grinding disc 10 and the lower grinding disc 20, thereby reducing the temperature of the slag during the grinding process, avoiding slag sintering and clogging, and improving the stability and reliability of the grinding equipment.

[0048] (4) The slag particle grinding equipment provided by the utility model has a simple structure, is easy to operate and maintain, and is suitable for large-scale continuous grinding of slag.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A slag particle grinding device, characterized in that: include: An upper grinding disc and a lower grinding disc arranged opposite to each other; The inner end surface of the upper grinding disc is provided with a groove, the groove comprises a bottom wall and a first side wall inclined outward, the bottom wall forms a first coarse grinding area, and the first side wall forms a first fine grinding area; The inner end surface of the lower grinding disc is provided with a boss matching the groove, the boss includes a top wall and a second side wall inclined outward, the top wall forms a second coarse grinding area, and the second side wall forms a second fine grinding area; The first coarse grinding zone and the second coarse grinding zone are both embedded with coarse grinding media, the first fine grinding zone and the second fine grinding zone are both embedded with fine grinding media, and the size of the coarse grinding media is larger than the size of the fine grinding media.

2. The slag particle grinding equipment according to claim 1, characterized in that: The inner end surface edge of the upper grinding disc forms a first fine grinding area, and the inner end surface edge of the lower grinding disc forms a second fine grinding area. The first fine grinding area and the second fine grinding area are both embedded with fine grinding media, and the size of the fine grinding media is smaller than that of the fine grinding media.

3. The slag particle grinding equipment according to claim 2, characterized in that: The coarse grinding media are coarse grinding balls, and the coarse grinding balls are rotatably embedded in the first coarse grinding area and the second coarse grinding area; The fine grinding media are fine grinding balls, and the fine grinding balls are rotatably embedded in the first fine grinding area and the second fine grinding area; The fine grinding media are fine grinding balls, which are rotatably embedded in the first coarse grinding area and the second coarse grinding area.

4. The slag particle grinding equipment according to claim 2, characterized in that: A discharge channel is provided at the bottom of the lower grinding disc, and an inlet end of the discharge channel is communicated with the second fine grinding area.

5. The slag particle grinding equipment according to claim 1, characterized in that: The bottom wall and the top wall are arranged to be inclined downward in a direction radially outward from the center.

6. The slag particle grinding equipment according to claim 1, characterized in that: It also includes a fixed bracket, and at least the upper grinding disc among the upper grinding disc and the lower grinding disc is rotatably connected to the fixed bracket.

7. The slag particle grinding equipment according to claim 6, characterized in that: The upper grinding disc and the lower grinding disc are both rotatably connected to the fixed bracket; It also includes a driving mechanism, which includes a first driving motor and a second driving motor. The output end of the first driving motor is drivingly connected to the upper grinding disc, and the output end of the second driving motor is drivingly connected to the lower grinding disc.

8. The slag particle grinding equipment according to claim 7, characterized in that: The output end of the first driving motor is connected to the upper grinding disc by a belt transmission, and the output end of the second driving motor is connected to the lower grinding disc by a belt transmission.

9. The slag particle grinding equipment according to any one of claims 1 to 8, characterized in that: The upper grinding disc is provided with a feed channel, and an outlet end of the feed channel is communicated with the first coarse grinding area.

10. The slag particle grinding equipment according to any one of claims 1 to 8, characterized in that: It also includes an air cooling mechanism, which includes a fan and an air supply pipe. The air outlet of the fan is connected to the inlet of the air supply pipe, and the outlet of the air supply pipe is connected to the upper grinding disc.

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