Recycling structure and vertical mill production system with same
By installing a recycling structure on the vertical mill, effective recycling of high-temperature waste heat and process wind is achieved, the problem of low production capacity is solved, and the production efficiency and energy utilization of the vertical mill are improved.
Patent Information
- Application Number
- CN202422155858.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-02
AI Technical Summary
It is difficult for existing vertical mills to effectively recover high-temperature waste heat and process wind during the production process, resulting in low production capacity, waste of energy and environmental problems.
A recycling structure is designed, including dust collection parts and fan parts, and the exhaust gas is discharged or recycled into the grinding chamber through the discharge pipe and the recycling pipe respectively, and the temperature is controlled by heating and insulation pipe sections to achieve effective recycling of waste heat and process wind.
It improves the production of vertical mills, reduces energy waste, and significantly improves production efficiency.
Smart Images
Figure CN223144833U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vertical mill equipment, and in particular, to a recycling structure and a vertical mill production system having the same. Background Art
[0002] A vertical mill, also known as a vertical roller mill or a vertical spindle mill, is a modern and efficient grinding equipment, which is widely used in various industrial fields. The vertical mill drives the grinding table to rotate through a vertical shaft. Under the action of centrifugal force, the material is sent between the grinding roller and the grinding table, and the grinding of the material is realized through the rolling action of the grinding roller on the grinding table. The vertical mill has a wide application in the field of mineral resource processing, such as iron ore, copper ore, aluminum ore, etc. After these minerals are ground, the utilization rate of the ore can be improved and the beneficiation cost can be reduced. In the building materials industry, the vertical mill is mainly used for grinding cement raw materials, gypsum, limestone, etc. After these raw materials are ground, the product quality can be improved and the production cost can be reduced.
[0003] However, aiming at the limitations of the existing vertical mill, the high-temperature waste heat and process air generated during the production process of the vertical mill cannot be effectively recovered, resulting in energy waste and environmental problems, and affecting the drying and pneumatic conveying effects of the material, thereby making the performance and output of the vertical mill relatively low and the energy consumption relatively high. Summary of the Utility Model
[0004] The main purpose of the utility model is to provide a recycling structure and a vertical mill production system having the same, so as to solve the problem that the high-temperature waste heat and process air generated during the production process of the existing vertical mill are difficult to be effectively recovered, resulting in relatively low production capacity.
[0005] To achieve the above object, according to one aspect of the utility model, a recycling structure is provided for being installed on a vertical mill. The vertical mill has a grinding chamber and a discharge port and an air inlet respectively communicated with the grinding chamber. The recycling structure includes: a dust collection component connected to the discharge port of the vertical mill for collecting the dust discharged through the discharge port; a fan component connected to the dust collection component. One end of the fan component far from the dust collection component is respectively connected with a discharge pipeline and a recycling pipeline. One end of the recycling pipeline is communicated with the air inlet of the vertical mill. The fan component can selectively communicate with the discharge pipeline and the recycling pipeline, so that the fan component discharges the waste gas generated in the dust collection component through the discharge pipeline, or returns the waste heat and process air generated during the production process of the vertical mill to the grinding chamber of the vertical mill through the recycling pipeline.
[0006] Further, a first control valve is provided on the discharge pipeline for controlling the conduction of the discharge pipeline; and / or, a second control valve is provided on the recycling pipeline for controlling the conduction of the recycling pipeline.
[0007] Further, a first conduction pipeline is connected between the dust collection component and the discharge port of the vertical mill, and a second conduction pipeline is connected between the dust collection component and the fan component. The dust collection component includes: a collection main body; and a filter element disposed in the cavity of the collection main body for filtering the dust discharged from the discharge port.
[0008] Further, a flow chute is provided at the bottom of the collection main body, and the flow chute is inclined in the direction towards the fan component, so that the waste gas in the dust collection component flows into the fan component after passing through the flow chute.
[0009] Further, the recovery pipeline includes a main pipe section, and at least one heating pipe section and at least one heat preservation pipe section respectively and spacedly arranged on the main pipe section, for heating the waste heat and process air generated during the production process of the vertical mill to a preset temperature range and maintaining it within the preset temperature range; wherein, the preset temperature range is greater than or equal to twice the external temperature of the recovery pipeline.
[0010] Further, the number of the heating pipe section and the heat preservation pipe section is one respectively. The heating pipe section is arranged at one end of the recovery pipeline close to the fan component, and the heat preservation pipe section is arranged at one end of the recovery pipeline close to the vertical mill and spaced from the heating pipe section.
[0011] Further, the heating pipe section and the heat preservation pipe section are respectively multiple, and the multiple heating pipe sections and the multiple heat preservation pipe sections are respectively staggeredly and spacedly arranged.
[0012] Further, the heating pipe section includes a first pipe section and a second pipe section arranged from the inside to the outside. The first pipe section is communicated with the main pipe section, and a plurality of heating elements are provided between the first pipe section and the second pipe section. The plurality of heating elements are spacedly arranged around the outer wall of the first pipe section; wherein, the heating element is an electric heating wire.
[0013] Further, a heat preservation material is laid along the circumferential direction on the outer wall of the heat preservation pipe section; wherein, the heat preservation material is made of rubber and plastic, or glass wool, or polystyrene.
[0014] According to another aspect of the present invention, a vertical mill production system is provided, including: the above-mentioned recycling structure and a vertical mill, and the recycling structure is connected with the vertical mill.
[0015] Applying the technical solution of the present utility model, the recycling structure is used to be installed on a vertical mill. The vertical mill has a grinding chamber, a discharge port and an air inlet that are respectively communicated with the grinding chamber. The recycling structure includes a dust collection component and a fan component; the dust collection component is connected to the discharge port of the vertical mill to collect the dust discharged through the discharge port; the fan component is connected to the dust collection component. One end of the fan component away from the dust collection component is respectively connected with an exhaust pipe and a recycling pipe. One end of the recycling pipe is communicated with the air inlet of the vertical mill. The fan component can selectively communicate with the exhaust pipe and the recycling pipe, so that the fan component discharges the waste gas generated in the dust collection component through the exhaust pipe, or the waste heat and process air generated during the production process of the vertical mill flow back into the grinding chamber of the vertical mill through the recycling pipe. In this way, the dust generated during the abrasive process in the vertical mill will flow out from the discharge port and be collected by the dust collection component, so that the fan component can discharge the waste gas generated after the dust collection component filters the dust. At the same time, through the recycling pipe, the fan component can transport the waste heat and process air generated during the production process of the vertical mill to the grinding chamber of the vertical mill through the recycling pipe, so that the moisture content of the powder product in the grinding chamber decreases, greatly improving the output of the vertical mill. At the same time, energy is actively recycled and utilized, avoiding waste of energy, and thus solving the problem that the existing vertical mill is difficult to effectively recycle the high-temperature waste heat and process air generated during the production process, resulting in low production capacity. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The schematic diagrams in the specification that form a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0017] Figure 1 shows the overall structural schematic diagram provided by the embodiment of the vertical mill production system according to the present utility model;
[0018] Figure 2 shows the structural schematic diagram of the recycling pipe provided by the embodiment of the recycling structure according to the present utility model.
[0019] Among them, the above-mentioned drawings include the following reference numerals:
[0020] 10. Vertical mill; 11. Discharge port; 12. Air inlet; 20. Dust collection component; 21. First conduction pipe; 22. Second conduction pipe; 23. Collection main body; 24. Flow chute; 30. Fan component; 40. Exhaust pipe; 41. First control valve; 50. Recycling pipe; 51. Second control valve; 52. Main pipe section; 53. Heating pipe section; 54. Heat preservation pipe section. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will describe the present utility model in detail with reference to the accompanying drawings and in combination with the embodiments.
[0022] In order to solve the problem that in the prior art, it is difficult to effectively recover the high-temperature waste heat and process air generated by a vertical mill during production, resulting in low production capacity, the present utility model provides a recovery and utilization structure and a vertical mill production system having the same.
[0023] Please refer to Figure 1 and Figure 2 As shown, on one hand, applying the technical solution of the present utility model, a recovery and utilization structure is provided, which is used to be installed on a vertical mill 10. The vertical mill 10 has a grinding chamber and a discharge port 11 and an air inlet 12 respectively communicating with the grinding chamber. The recovery and utilization structure includes a dust collection component 20 and a fan component 30; the dust collection component 20 is connected to the discharge port 11 of the vertical mill 10 for collecting the dust discharged through the discharge port 11; the fan component 30 is connected to the dust collection component 20. One end of the fan component 30 away from the dust collection component 20 is respectively connected with an exhaust pipe 40 and a recovery pipe 50. One end of the recovery pipe 50 communicates with the air inlet 12 of the vertical mill 10. The fan component 30 is selectively communicated with the exhaust pipe 40 and the recovery pipe 50, so that the fan component 30 discharges the waste gas generated in the dust collection component 20 through the exhaust pipe 40, or returns the waste heat and process air generated by the vertical mill 10 during production through the recovery pipe 50 to the grinding chamber of the vertical mill 10.
[0024] On one hand, applying the technical solution of the present embodiment, the dust generated during the abrasive process in the vertical mill 10 will flow out from the discharge port 11 and be collected by the dust collection component 20, so that the fan component 30 can discharge the waste gas generated after the dust collection component 20 filters the dust. At the same time, through the recovery pipe 50, the fan component 30 can transport the waste heat and process air generated by the vertical mill 10 during production through the recovery pipe 50 to the grinding chamber of the vertical mill 10, so that the moisture of the powder product in the grinding chamber decreases, greatly improving the output of the vertical mill 10. At the same time, energy is actively recovered and utilized, avoiding waste of energy, and thus solving the problem that in the prior art, it is difficult for the vertical mill 10 to effectively recover the high-temperature waste heat and process air generated during production, resulting in low production capacity.
[0025] Specifically, a first control valve 41 is provided on the exhaust pipe 40 for controlling the conduction of the exhaust pipe 40; a second control valve 51 is provided on the recovery pipe 50 for controlling the conduction of the recovery pipe 50. In this way, when exhausting waste gas, the first control valve 41 is controlled to open and the second control valve 51 is controlled to close, while when recovering and utilizing the waste heat and process air, the first control valve 41 is controlled to close and the second control valve 51 is controlled to open.
[0026] In this embodiment, the dust collection component 20 is connected to the discharge port 11 of the vertical mill 10 through a first conduction pipeline 21, and the dust collection component 20 is connected to the fan component 30 through a second conduction pipeline 22. The dust collection component 20 includes a collection main body 23 and a filter element; the filter element is arranged in the cavity of the collection main body 23 to filter the dust discharged from the discharge port 11. In this way, the dust generated during the production process of the vertical mill 10 will flow from the discharge port 11 into the dust collection component 20 through the first conduction pipeline 21, and the waste gas generated after being collected and filtered by the filter element will flow to the fan component 30 through the second conduction pipeline 22, so that the fan component 30 discharges it through the discharge pipeline 40.
[0027] Specifically, a flow chute 24 is provided at the bottom of the collection main body 23. The flow chute 24 is inclined in the direction towards the fan component 30, so that the waste gas in the dust collection component 20 flows into the fan component 30 after passing through the flow chute 24. The above setting helps the waste gas in the dust collection component 20 to be extracted and discharged by the fan component 30 under the flow in the flow chute 24.
[0028] In an exemplary embodiment of the present application, the recovery pipeline 50 includes a main pipe section 52, at least one heating pipe section 53 and at least one heat preservation pipe section 54 which are respectively and spaced apart on the main pipe section 52, for heating the waste heat and process air generated during the production process of the vertical mill 10 to a preset temperature range and maintaining them within the preset temperature range; wherein, the preset temperature range is greater than or equal to twice the external temperature of the recovery pipeline 50. In this way, when recovering and utilizing the waste heat and process air generated during the production process of the vertical mill 10, the waste heat and process air respectively flow through the heating pipe section 53 and the heat preservation pipe section 54, so that the temperatures of the waste heat and process air are maintained within the preset temperature range and flow back to the grinding cavity of the vertical mill 10, to reduce the moisture of the powder product in the vertical mill 10 during the production process, and thus significantly improve the output of the vertical mill 10.
[0029] Optionally, the number of the heating pipe section 53 and the heat preservation pipe section 54 is one respectively. The heating pipe section 53 is arranged at one end of the recovery pipeline 50 close to the fan component 30, and the heat preservation pipe section 54 is arranged at one end of the recovery pipeline 50 close to the vertical mill 10 and is spaced apart from the heating pipe section 53. With the above setting, both the heating pipe section 53 and the heat preservation pipe section 54 are one, and their lengths are respectively one-half of the recovery pipeline 50, so that the waste heat and process air are heated by the heating pipe section 53 and then the temperature is maintained within the preset temperature range which is much higher than the external temperature by the heat preservation pipe section 54, and then flows back to the grinding cavity of the vertical mill 10, so as to sufficiently reduce the moisture of the powder product in the grinding cavity, thereby significantly improving the production capacity of the vertical mill 10 during the abrasive process.
[0030] Preferably, the heating pipe sections 53 and the heat preservation pipe sections 54 are respectively multiple, and the multiple heating pipe sections 53 and the multiple heat preservation pipe sections 54 are respectively arranged at intervals in an interleaved manner. With the above arrangement, one heat preservation pipe section 54 is arranged at intervals of one heating pipe section 53. In this way, when heating the waste heat and the process air, through multiple heating and heat preservation, the temperature of the waste heat and the process air can be accurately controlled within the preset temperature range, effectively recycling the energy of the waste heat and the process air, and solving the problem of low production capacity of the vertical mill 10 in the prior art.
[0031] In an exemplary embodiment of the present application, the heating pipe section 53 includes a first pipe section and a second pipe section arranged from the inside to the outside. The first pipe section is communicated with the main pipe section 52, and a plurality of heating elements are arranged between the first pipe section and the second pipe section. The plurality of heating elements are arranged at intervals around the outer wall of the first pipe section; wherein, the heating element is an electric heating wire. In this way, the outer wall of the second pipe section is heated by using a plurality of heating elements which are electric heating wires, so that the temperature of the waste heat and the process air flowing through the second pipe section is increased to within the preset temperature range.
[0032] In another exemplary embodiment of the present application, a heat preservation material is laid along the circumferential direction on the outer wall of the heat preservation pipe section 54; wherein, the heat preservation material is made of rubber and plastic, or glass wool, or polystyrene. In this way, when the waste heat and the process air heated by the heating pipe section 53 flow through the heat preservation pipe section 54, their temperature can be maintained within the preset temperature range and flow back to the grinding cavity of the vertical mill 10, thereby effectively utilizing the waste heat and the process air, and significantly improving the production capacity of the vertical mill 10 at the same time.
[0033] On the other hand, applied to the technical solution of the present invention, a vertical mill 10 production system is provided, which includes the above-mentioned recycling structure and the vertical mill 10, and the recycling structure is connected to the vertical mill 10. In this way, the vertical mill 10 equipped with the recycling structure reduces one mill dust discharge port, and directly acts the waste heat and the process air on the grinding cavity of the vertical mill 10, not only effectively utilizing the waste heat and the process air, reducing the waste of energy, but also improving the production capacity of the vertical mill 10.
[0034] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
[0035] The recycling structure is used to be installed on a vertical mill, which has a grinding chamber, a discharge port and an air inlet that are respectively communicated with the grinding chamber. The recycling structure includes a dust collection component and a fan component; the dust collection component is connected to the discharge port of the vertical mill for collecting the dust discharged through the discharge port; the fan component is connected to the dust collection component, and a discharge pipe and a recycling pipe are respectively connected to one end of the fan component away from the dust collection component. One end of the recycling pipe is communicated with the air inlet of the vertical mill. The fan component can selectively communicate with the discharge pipe and the recycling pipe, so that the fan component discharges the waste gas generated in the dust collection component through the discharge pipe, or returns the waste heat and process air generated during the production process of the vertical mill to the grinding chamber of the vertical mill through the recycling pipe. In this way, the dust generated during the abrasive process in the vertical mill will flow out from the discharge port and be collected by the dust collection component, so that the fan component can discharge the waste gas generated after the dust collection component filters the dust. At the same time, through the recycling pipe, the fan component can convey the waste heat and process air generated during the production process of the vertical mill to the grinding chamber of the vertical mill through the recycling pipe, reducing the moisture of the powder product in the grinding chamber, greatly increasing the output of the vertical mill, actively recycling energy at the same time, avoiding waste of energy, and thus solving the problem that the vertical mill in the prior art is difficult to effectively recycle the high-temperature waste heat and process air generated during the production process, resulting in low production capacity.
[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.
[0037] Unless otherwise specifically stated, the relative arrangements, numerical expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary explanation, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0039] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above-mentioned", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used here.
[0040] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A recycling structure for installation on a vertical mill (10), the vertical mill (10) having a grinding chamber and a discharge port (11) and an air inlet (12) respectively communicating with the grinding chamber, characterized in that, The recycling structure includes: a dust collection component (20), which is connected to the discharge port (11) of the vertical mill (10) for collecting the dust discharged through the discharge port (11); a fan component (30), which is connected to the dust collection component (20). One end of the fan component (30) far from the dust collection component (20) is respectively connected with an exhaust pipe (40) and a recycling pipe (50). One end of the recycling pipe (50) is communicated with the air inlet (12) of the vertical mill (10). The fan component (30) can selectively communicate with the exhaust pipe (40) and the recycling pipe (50), so that the fan component (30) discharges the waste gas generated in the dust collection component (20) through the exhaust pipe (40), or returns the waste heat and process air generated during the production process of the vertical mill (10) to the grinding cavity of the vertical mill (10) through the recycling pipe (50).
2. The recycling structure according to claim 1, wherein A first control valve (41) is provided on the exhaust pipe (40) for controlling the conduction of the exhaust pipe (40); and / or, A second control valve (51) is provided on the recycling pipe (50) for controlling the conduction of the recycling pipe (50).
3. The recycling structure according to claim 1, characterized in that, The dust collection component (20) is connected to the discharge port (11) of the vertical mill (10) through a first conduction pipe (21), and the dust collection component (20) is connected to the fan component (30) through a second conduction pipe (22). The dust collection component (20) includes: a collection main body (23); a filter element, which is arranged in the cavity of the collection main body (23) for filtering the dust discharged through the discharge port (11).
4. The recycling structure according to claim 3, wherein A flow chute (24) is provided at the bottom of the collection main body (23), and the flow chute (24) is inclined in the direction towards the fan component (30), so that the waste gas in the dust collection component (20) flows into the fan component (30) after passing through the flow chute (24).
5. The recycling structure according to claim 1, characterized in that, The recycling pipe (50) includes a main pipe section (52) and at least one heating pipe section (53) and at least one heat preservation pipe section (54) respectively arranged at intervals on the main pipe section (52) for heating the waste heat and process air generated during the production process of the vertical mill (10) to a preset temperature range and maintaining them within the preset temperature range; wherein, the preset temperature range is greater than or equal to twice the external temperature of the recycling pipe (50).
6. The recycling structure according to claim 5, wherein, The number of the heating pipe section (53) and the heat preservation pipe section (54) is one respectively. The heating pipe section (53) is arranged at one end of the recycling pipe (50) close to the fan component (30), and the heat preservation pipe section (54) is arranged at one end of the recycling pipe (50) close to the vertical mill (10) and is arranged at intervals with the heating pipe section (53).
7. The recycling structure according to claim 5, wherein The heating pipe section (53) and the heat preservation pipe section (54) are respectively multiple, and the multiple heating pipe sections (53) and the multiple heat preservation pipe sections (54) are respectively arranged at intervals in an alternating manner.
8. The recycling structure according to claim 5, characterized in that, The heating pipe section (53) includes a first pipe section and a second pipe section arranged from the inside out. The first pipe section communicates with the main pipe section (52). A plurality of heating elements are provided between the first pipe section and the second pipe section, and the plurality of heating elements are arranged at intervals around the outer wall of the first pipe section. Among them, the heating element is an electric heating wire.
9. The recycling structure according to claim 5, wherein, The outer wall of the heat preservation pipe section (54) is provided with heat preservation materials along its circumferential direction. Among them, the heat preservation materials are made of rubber and plastic, or glass wool, or polystyrene.
10. A vertical mill production system, characterized in that, Comprising: The recycling structure according to any one of claims 1 to 9; A vertical mill (10), and the recycling structure is connected to the vertical mill (10).