Bottom heat scraping integrated Raymond mill

Abstract

The utility model discloses a bottom heat scraping integrated Raymond mill, and relates to the technical field of mechanical equipment. A main shaft is installed in the middle of the inner bottom of the outer shell, a plurality of scraper knives are connected with the main shaft through a support, a plum-blossom-shaped frame is installed on the upper side of the main shaft, a plurality of grinding rollers are installed on the plum-blossom-shaped frame, a rotating cage is installed on the inner upper side of the classifier shell, an inwards-concave installation groove is formed in the bottom of the outer shell, and a heating mechanism is installed in the installation groove. Scraping plate mechanisms are symmetrically mounted on the plum blossom rack; according to the mineral powder drying device, quick drying is achieved, wet mineral powder is not adhered to the inner side wall, and the quality of the mineral powder can be improved; the heating mechanism is adopted to heat the bottom and the side wall of the outer shell, ore raw materials and ore powder can be heated and rapidly dried, meanwhile, inlet air is matched for cyclic heating, and the heating efficiency can be improved; the inner side wall of the outer shell is scraped by adopting the scraper mechanism, so that mineral powder is not adhered to the inner side wall, and the machine does not need to be frequently disassembled for cleaning and maintenance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical equipment technical field, concretely relates to a bottom -placed hot scrape integrated formula Raymond mill. BACKGROUND

[0002] Raymond mill as a kind of mine equipment, mainly through mechanical processing, ore raw materials are ground into fine powder.This process is not only associated with mining, machinery manufacturing and building material industry, is also closely linked with metallurgy, medicine, plastic, rubber, animal feeding, paper product manufacturing, environmental protection and aerospace and other fields.With the progress of grinding technology and its wide application at home and abroad, China's grinding industry has developed rapidly.At the same time, in the face of market competition, each grinding equipment manufacturer increases the investment in product research and development, promotes the diversification of grinding equipment, and presents obvious differentiation in appearance, structure and performance.

[0003] And the existing Raymond mill in ore grinding will appear the following problems:

[0004] I, ore raw materials in initial processing stage, pre-formed powder and other large particle gravel will have certain humidity, powder will be wrapped and adhered to the surface of large particle gravel for powdering affect subsequent processing, and when receiving air flow, its powder will move up, come out from finished product outlet, but when powder moves up, because of uneven powder humidity, part of powder will be adhered to the inner side wall of shell, and in continuous grinding, more and more will be accumulated on its inner side wall, and in later period, it needs to be partially disassembled and cleaned regularly, affect grinding quality and processing period.

[0005] II, lack of corresponding unified standard dehumidification measures in grinding initial stage, it will heat the air flow entering Raymond mill, realize the heating and dehumidification of powder by heated air flow, but when dehumidification by air flow heating, speed is slow, cannot heat in first time in initial processing stage, lead to uneven humidity of powder. CONTENT OF THE UTILITY MODEL

[0006] To solve the problems mentioned in the above background art, the purpose of the utility model is to provide a bottom -placed hot scrape integrated formula Raymond mill.

[0007] The utility model discloses a kind of bottom hot scraping integrated Raymond mill, including outer shell, classifier shell, main shaft, plum blossom frame, mill roller, shovel, rotating cage, heating mechanism, scraper mechanism;The upper end of outer shell is connected with classifier shell, the upper side of outer shell is provided with main machine outlet, the upper end of classifier shell is provided with finished product outlet, the inner bottom of outer shell is provided with shovel area, the upper side of shovel area is provided with mill roller area, mill roller area is connected with feed inlet, the inner bottom of outer shell is installed with main shaft in middle part, several shovels are connected with main shaft by support, several shovels are arranged in shovel area, the upper side of main shaft is installed with plum blossom frame, several mill rollers are installed on plum blossom frame, rotating cage is installed on the inner upper side of classifier shell, recessed mounting groove is set in the bottom of outer shell, heating mechanism is installed in mounting groove, scraper mechanism is symmetrically installed on plum blossom frame.

[0008] As preferred, the heating mechanism includes a bottom heating disc, a side heating disc, and a fixed frame; the side heating disc is installed at the inner edge of the upper end surface of the bottom heating disc, and the fixed frame is installed on the sidewall of the bottom heating disc; the bottom heating disc and the side heating disc are composed of two to four arc-shaped disc bodies.

[0009] As preferred, the bottom heating disc and the side heating disc have the same structure and each include an insulating disc, an aluminum foil heat preservation layer, a heating sheet, and a uniform heating plate; a groove is formed in the inside of the insulating disc, the aluminum foil heat preservation layer is installed in the groove, the heating sheet is installed at the bottom of the uniform heating plate, and the uniform heating plate is installed in the mounting groove, with the upper end surface of the uniform heating plate being higher than the upper end surface of the insulating disc.

[0010] As preferred, a groove is formed at the bottom of the uniform heating plate, mounting holes are formed at the two sides of the bottom of the uniform heating plate, and temperature sensors are installed in the mounting holes.

[0011] As preferred, the scraper mechanism includes a fixed column, a reset mechanism, and a scraper body; the reset mechanism is installed at the upper end of the fixed column, and the scraper body is installed at the front end of the reset mechanism.

[0012] As preferred, the fixed column includes a fixed disc and a supporting cylinder; the supporting cylinder is installed at the upper end surface of the fixed disc, and a plurality of connecting threaded holes are formed at the upper end surface of the supporting cylinder.

[0013] As preferred, the reset mechanism includes a reset shell, a right-angle fixed plate, a dust cover, a reset spring, a guide block, and a guide rod; the right-angle fixed plate is installed at the rear end surface of the reset shell, a rectangular guide slot is formed in the reset shell, the guide block is rectangular, the guide block is movably connected in the rectangular guide slot, the reset spring is installed at the rear end of the guide block, the other end of the reset spring is connected with the bottom of the rectangular guide slot, the guide rod is installed at the front end surface of the guide block, the guide rod is sealingly movably connected with the dust cover, and the dust cover is installed on the front sidewall of the reset shell.

[0014] As preferred, the front end of the guide rod is provided with an inner recessed fixing groove.

[0015] As preferred, the scraper body comprises a reinforcing strip, a wear-resistant and high-temperature-resistant scraping strip; the front end face of the reinforcing strip is provided with an inner recessed groove, and the wear-resistant and high-temperature-resistant scraping strip is installed in the groove.

[0016] Compared with the prior art, the beneficial effects of the utility model are that: through the mutual cooperation of the shell body, the classifier shell, the main shaft, the plum blossom frame, the grinding roller, the shovel knife, the rotating cage, the heating mechanism and the scraper mechanism, the corresponding positions in the initial processing stage are preheated, the ore raw materials in the most humid stage in the initial stage are preheated in time, the processing positions are circumferentially and comprehensively processed, and the scraping operation on the inner side wall is performed under the cooperation of the preheating, so that the ore powder is subjected to timely and comprehensive dewetting treatment in the initial processing stage, which is beneficial to improving the uniform and standard drying state of the subsequent powder, avoiding the adhesion of the humid ore powder on the inner side wall, forming the initial processing mode of the hot scraping integration, and being beneficial to improving the uniform and standard processing quality of the ore powder. The specific advantages are that:

[0017] I. The heating mechanism is adopted to heat the bottom and the side wall of the shell body, so that the ore raw materials and the ore powder are provided with multi-position heating, the ore raw materials and the ore powder are subjected to multi-directional rapid drying, and the efficiency of heating is improved in cooperation with the circulating heating of the air inlet.

[0018] II. The scraper mechanism is adopted to scrape the inner side wall of the shell body, so that the ore powder is not adhered to the inner side wall, and the ore powder quality can be improved without frequent disassembly for cleaning and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to facilitate the description, the utility model is described in detail by the following specific embodiments and drawings.

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is a structural schematic view of the heating mechanism in the utility model;

[0022] Figure 3 It is a sectional view of the bottom heating disc in the utility model;

[0023] Figure 4 It is a structural schematic view of the heat plate in the utility model;

[0024] Figure 5 It is a structural schematic view of the scraper mechanism in the utility model;

[0025] Figure 6 It is a structural schematic view of the fixed column body in the utility model;

[0026] Figure 7 is a plan view of the reset mechanism in the utility model;

[0027] Figure 8 is a structural schematic view of the scraper body in the utility model.

[0028] In the figure: 1-outer shell; 2-classifier shell; 3-main shaft; 4-wreath; 5-grinding roller; 6-shovel; 7-rotary cage; 8-heating mechanism; 9-scraper mechanism;

[0029] 1-1-feeding port; 1-2-main machine outlet; 1-3-finished product outlet;

[0030] 8-1-bottom heating disc; 8-2-side heating disc; 8-3-fixed frame;

[0031] 8-11-heat insulation disc; 8-12-aluminum foil heat preservation layer; 8-13-heating sheet; 8-14-heat plate;

[0032] 8-141-groove body; 8-142-mounting hole;

[0033] 9-1-fixed column body; 9-2-reset mechanism; 9-3-scraper body;

[0034] 9-11-fixed disc; 9-12-supporting cylinder; 9-13-connection screw hole;

[0035] 9-21-reset shell; 9-22-right-angle fixed plate; 9-23-dust cover; 9-24-reset spring; 9-25-guiding block; 9-26-guiding rod; 9-27-fixed groove body;

[0036] 9-31-strengthening strip; 9-32-wear-resistant and high-temperature-resistant scraping strip. DETAILED DESCRIPTION

[0037] To make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will describe the utility model through specific embodiments shown in the drawings. However, it should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the utility model. The structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, so that people skilled in the art can understand and read, and are not intended to limit the limiting conditions that the utility model can be implemented, so they do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that the utility model can produce, should still fall within the scope of the technical content disclosed by the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0038] It should be noted that, in order to avoid unnecessary details from obscuring the present application, only structures and / or processing steps closely related to the present application are shown in the drawings, and other details not closely related to the present application are omitted.

[0039] As shown in the specific embodiment, the heating mechanism is used to realize the uniform heating and dehumidification process for the ore raw materials and the initial processing stage of the powder in the outer shell by using the optimal arrangement of the dehumidification position, timing and processing link, so that the initial stage of the grinding powder can be dehumidified in time, the humidity in the powder is low, the quality of the subsequent processing can be standardized and unified, the material flow direction and processing procedure of the whole machine are adapted, the hot flow trend of the lower cold and upper heat is suppressed, and the thermal balance effect of the whole machine is improved. Figures 1 to 8 The specific technical scheme is as follows: an outer shell 1, a classifier shell 2, a main shaft 3, a plum blossom frame 4, a grinding roller 5, a shovel 6, a rotating cage 7 and a heating mechanism 8 are arranged; the upper end of the outer shell 1 is connected with the classifier shell 2, the upper side of the outer shell 1 is provided with a main machine outlet 1-2, the classifier shell 2 can realize the separation of the powder and the small ore, the small ore is discharged from the main machine outlet 1-2, the upper end of the classifier shell 2 is provided with a finished product outlet 1-3, the finished product outlet 1-3 can realize the discharge of the finished product ore powder, the inner bottom of the outer shell 1 is provided with a shovel area, the upper side of the shovel area is provided with a grinding roller area, the grinding roller area is connected with a feeding port 1-1, the inner bottom of the outer shell 1 is provided with the main shaft 3, a plurality of shovels 6 are connected with the main shaft 3 through supports, the plurality of shovels 6 are arranged in the shovel area, the upper side of the main shaft 3 is provided with the plum blossom frame 4, a plurality of grinding rollers 5 are arranged on the plum blossom frame 4, the inner upper side of the classifier shell 2 is provided with the rotating cage 7, the rotating cage 7 can realize the screening of the fine powder, the bottom of the outer shell 1 is provided with a concave installation groove, and the heating mechanism 8 is arranged in the installation groove. Figure 2 As shown in the specific embodiment, the heating mechanism 8 includes a bottom heating disc 8-1, a side heating disc 8-2 and a fixing frame 8-3; the side heating disc 8-2 is arranged at the inner edge of the upper end surface of the bottom heating disc 8-1, the fixing frame 8-3 is arranged on the side wall of the bottom heating disc 8-1, and the fixing frame 8-3 can fix the bottom heating disc 8-1. The bottom heating disc 8-1 and the side heating disc 8-2 are circular discs composed of two to four arc-shaped disc bodies, and the arc-shaped disc bodies are arranged separately for installation, which facilitates the later disassembly and installation.

[0040] As shown in the specific embodiment, the heating disc in the specific embodiment is arranged in a heat insulation and heat preservation manner to improve the thermal efficiency. Figure 3 , Figure 4As shown, the bottom heating plate 8-1 and the side heating plate 8-2 have the same structure, both including a heat insulation plate 8-11, an aluminum foil insulation layer 8-12, a heating element 8-13, and a heat spreader plate 8-14. The heat insulation plate 8-11 has a groove inside, which provides heat insulation. The aluminum foil insulation layer 8-12 is installed inside the groove, providing heat preservation and improving thermal efficiency. The heating element 8-13 is installed at the bottom of the heat spreader plate 8-14. The heating element 8-13 enables rapid heating, and the heat is evenly distributed through the heat spreader 8-14. The heat spreader 8-14 is installed in the mounting groove, and the upper surface of the heat spreader 8-14 is higher than the upper surface of the heat insulation plate 8-11. The bottom of the heat spreader 8-14 has a groove 8-141, and mounting holes 8-142 are provided on both sides of the bottom of the heat spreader 8-14. Temperature sensors are installed in the mounting holes 8-142, and the temperature sensors can detect the temperature.

[0041] like Figure 1 As shown, in this specific embodiment, a scraper mechanism is used to scrape the inner wall of the outer casing, making it less likely for wet powder to adhere to the inner wall and reducing the maintenance rate. The specific technical solution is as follows: A scraper mechanism 9 is included; scraper mechanisms 9 are symmetrically installed on the perforated frame 4. The scraper mechanism 9 can scrape the inner wall, preventing wet powder from adhering to the inner wall. Figure 5 As shown, the scraper mechanism 9 includes a fixed column 9-1, a reset mechanism 9-2, and a scraper body 9-3. The upper end of the fixed column 9-1 is equipped with the reset mechanism 9-2, which fixes the scraper. The front end of the reset mechanism 9-2 is equipped with the scraper body 9-3, which allows the scraper body 9-3 to fit against the inner wall of the outer casing 1, facilitating powder scraping. Figure 6 As shown, the fixed column 9-1 includes a fixed disc 9-11 and a supporting column 9-12; the supporting column 9-12 is mounted on the upper end face of the fixed disc 9-11, and the fixed disc 9-11 can be fixed on the perforated frame 4. Several threaded holes 9-13 are provided on the upper end face of the supporting column 9-12, and the threaded holes 9-13 can be used to install the reset mechanism 9-2; Figure 7As shown, the reset mechanism 9-2 includes a reset housing 9-21, a right-angle fixed plate 9-22, a dust cover 9-23, a reset spring 9-24, a guide block 9-25, and a guide rod 9-26. The rear end face of the reset housing 9-21 is provided with the right-angle fixed plate 9-22, which is installed on the upper end of the support cylinder 9-12. The reset housing 9-21 is provided with a rectangular guide slot. The guide block 9-25 is rectangular and movably connected in the rectangular guide slot. The rear end of the guide block 9-25 is provided with the reset spring 9-24, which can reset the guide block 9-25. The other end of the reset spring 9-24 is connected with the bottom of the rectangular guide slot. The front end face of the guide block 9-25 is provided with the guide rod 9-26, which is sealingly movably connected with the dust cover 9-23. The dust cover 9-23 can realize dustproof and guiding of the guide rod 9-26. The dust cover 9-23 is installed on the front side wall of the reset housing 9-21. The front end of the guide rod 9-26 is provided with an inner recessed fixed groove 9-27, which can realize installation of the scraper body 9-3. Figure 8 As shown, the scraper body 9-3 includes a reinforcing strip 9-31 and a wear-resistant and high-temperature-resistant scraping strip 9-32. The front end face of the reinforcing strip 9-31 is provided with an inner recessed groove, and the wear-resistant and high-temperature-resistant scraping strip 9-32 is installed in the groove. The wear-resistant and high-temperature-resistant scraping strip 9-32 is a wear-resistant and high-temperature-resistant scraping strip, which improves the service life and can realize wet powder scraping of the inner side wall. The cooperation of the heating mechanism 8 and the scraper mechanism 9 forms a heat and scraping integrated processing form, which is especially suitable for the initial processing stage of the ore raw material.

[0042] The working principle of the embodiment is as follows: the main motor drives the main shaft 3 with the plum blossom frame 4 to rotate, the grinding roller 5 is connected with the plum blossom frame 4 through horizontal hinging to form a support point for swinging, under the driving of the plum blossom frame 4, the grinding roller 5 starts to rotate and is tightly pressed against the grinding ring under the action of centrifugal force, and realizes self-rotation through friction to crush the material. The shovel 6 at the bottom of the plum blossom frame 4 plays a role in lifting the material, in the operation process, the grinding roller 5 and the shovel 6 rotate together, throw the material upward and fill it between the grinding roller 5 and the grinding ring to form a material layer, which is crushed under the action of outward centrifugal force (i.e. extrusion force) generated by the revolution of the grinding roller 5. At the same time, the airflow blown from the air inlet of the Raymond mill is improved in inlet air speed after passing through the main air duct volute and blade structure, and forms an internal air field in the whole machine, the fine particles generated by the grinding in the grinding roller and grinding ring area are coupled with the air field and are transported upward, under the screening action of the classifier, the finished product is finally selected from the finished product outlet 1-3 of the whole machine, and the scraper mechanism 9 is rotated with the main motor during rotation, the scraper mechanism 9 scrapes the inner side wall of the outer shell body 1, so that the crushed powder can be scraped in time to avoid large-area adhesion with the inner side wall of the outer shell body 1, which is beneficial to continuous treatment of the powder, and the heating mechanism 8 can heat the bottom and side of the outer shell body 1, which is convenient for rapid dehumidification of the ore raw material and the ground powder after entering, reduces the humidity of the ground powder, and is beneficial to reducing the probability of adhesion of the powder to the inner side wall.

Claims

1. A bottom-mounted hot scraper integrated Raymond mill, characterized in that: The components include an outer shell (1), a grading machine outer shell (2), a main shaft (3), a perforated frame (4), a grinding roller (5), a shovel (6), a rotating drum (7), a heating mechanism (8), and a scraper mechanism (9). The upper end of the outer shell (1) is connected to the grading machine outer shell (2). The upper side of the outer shell (1) has a main machine outlet (1-2), and the upper end of the grading machine outer shell (2) has a finished product outlet (1-3). The inner bottom of the outer shell (1) is provided with a shovel area, and the upper side of the shovel area is provided with a grinding roller area. The grinding roller area is connected to a feed inlet. (1-1) A main shaft (3) is installed in the middle of the bottom of the outer shell (1). Several shovels (6) are connected to the main shaft (3) through a bracket. Several shovels (6) are set in the shovel area. A plum blossom frame (4) is installed on the upper side of the main shaft (3). Several grinding rollers (5) are installed on the plum blossom frame (4). A rotating cage (7) is installed on the upper inner side of the grading machine outer shell (2). A concave mounting groove is opened at the bottom of the outer shell (1). A heating mechanism (8) is installed in the mounting groove. A scraper mechanism (9) is symmetrically installed on the plum blossom frame (4).

2. The bottom-mounted hot scraper integrated Raymond mill according to claim 1, characterized in that: The heating mechanism (8) includes a bottom heating plate (8-1), a side heating plate (8-2), and a fixing frame (8-3); the side heating plate (8-2) is installed at the inner edge of the upper surface of the bottom heating plate (8-1), and the fixing frame (8-3) is installed on the side wall of the bottom heating plate (8-1). The bottom heating plate (8-1) and the side heating plate (8-2) are circular plates composed of two to four arc-shaped plates.

3. The bottom-mounted hot scraper integrated Raymond mill according to claim 2, characterized in that: The bottom heating plate (8-1) and the side heating plate (8-2) have the same structure, both including a heat insulation plate (8-11), an aluminum foil insulation layer (8-12), a heating element (8-13), and a heat spreader plate (8-14). The heat insulation plate (8-11) has a groove inside, and the aluminum foil insulation layer (8-12) is installed in the groove. The heating element (8-13) is installed at the bottom of the heat spreader plate (8-14), and the heat spreader plate (8-14) is installed in the mounting groove. The upper surface of the heat spreader plate (8-14) is higher than the upper surface of the heat insulation plate (8-11).

4. A bottom-mounted hot scraper integrated Raymond mill according to claim 3, characterized in that: The bottom of the heat spreader (8-14) is provided with a groove (8-141), and mounting holes (8-142) are provided on both sides of the bottom of the heat spreader (8-14). Temperature sensors are installed in the mounting holes (8-142).

5. A bottom-mounted hot scraper integrated Raymond mill according to claim 1, characterized in that: The scraper mechanism (9) includes a fixed column (9-1), a reset mechanism (9-2), and a scraper body (9-3); the upper end of the fixed column (9-1) is equipped with the reset mechanism (9-2), and the front end of the reset mechanism (9-2) is equipped with the scraper body (9-3).

6. A bottom-mounted hot scraper integrated Raymond mill according to claim 5, characterized in that: The fixed column (9-1) includes a fixed disc (9-11) and a supporting column (9-12); the supporting column (9-12) is installed on the upper end face of the fixed disc (9-11), and the upper end face of the supporting column (9-12) is provided with several connecting threaded holes (9-13).

7. A bottom-mounted hot scraper integrated Raymond mill according to claim 5, characterized in that: The reset mechanism (9-2) includes a reset housing (9-21), a right-angle fixing plate (9-22), a dust cover (9-23), a reset spring (9-24), a guide block (9-25), and a guide rod (9-26). The right-angle fixing plate (9-22) is installed on the rear end face of the reset housing (9-21). A rectangular guide groove is opened inside the reset housing (9-21). The guide block (9-25) is rectangular and is movably connected in the rectangular guide groove. The reset spring (9-24) is installed on the rear end of the guide block (9-25). The other end of the reset spring (9-24) is connected to the bottom of the rectangular guide groove. The guide rod (9-26) is installed on the front end face of the guide block (9-25). The guide rod (9-26) is movably connected to the dust cover (9-23) in a sealed manner. The dust cover (9-23) is installed on the front side wall of the reset housing (9-21).

8. A bottom-mounted hot scraper integrated Raymond mill according to claim 7, characterized in that: The front end of the guide rod (9-26) is provided with a recessed fixing groove (9-27).

9. A bottom-mounted hot scraper integrated Raymond mill according to claim 5, characterized in that: The scraper body (9-3) includes a reinforcing strip (9-31) and a wear-resistant and high-temperature resistant scraper (9-32); the front end face of the reinforcing strip (9-31) has a concave groove, and the wear-resistant and high-temperature resistant scraper (9-32) is installed in the groove.

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