A hot air circulating hammer type dispersing machine for desulfurized gypsum

Abstract

The application discloses a desulfurization gypsum hot air circulation hammer type scattering machine, which comprises a machine body, a beating chamber is arranged at the center of the inner cavity of the machine body, and an exhaust passage is arranged on the top of the machine body and communicated with the beating chamber; a hammer head assembly is rotatably connected in the beating chamber; a hot air piece is arranged on one side of the machine body; a gas guide passage is arranged on the machine body and located on the side of the beating chamber; one end of the gas guide passage is communicated with the air outlet end of the hot air piece, and the other end is communicated with the exhaust passage; the hot air piece sequentially passes through the gas guide passage and the exhaust passage to circulate and discharge hot gas; the drying speed of gypsum material in the beating chamber is improved by changing the circulation route of the hot gas; a double-heating-gas-channel heating mode is arranged, one of the channels directly heats the material in the beating chamber and removes water through the flowability of the gas, and the other channel indirectly heats the material in the beating chamber and plays a heat preservation role, so that the whole beating chamber is heated and dried.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hammer type dispersing machines, in particular to a desulfurized gypsum hot air circulating hammer type dispersing machine. BACKGROUND

[0002] The particle size of the material entering the hammer type dispersing machine is relatively fine, and the moisture content of the material is different from the dryness of the crushed material in other industries. The material is easy to bond into a group, causing material accumulation, and even causing the hammer head to stick to the material and clamp the material. In order to avoid this phenomenon, a hot air channel is usually provided inside the dispersing machine for heating and drying, that is, the hot air is introduced and discharged from the upper hot air of the dispersing machine.

[0003] However, the current hot air only flows through the cavity of the material dispersing cavity, the flow channel is single, the range of gas flow is small, and the flowing hot gas is only used for drying the gypsum material. During the drying process, the flow direction of the hot air is gradually diffused from one end to the other end. Only when the amount of hot gas in the cavity reaches a certain amount, can the gypsum material in the entire material dispersing cavity be dried. The drying speed is slow and the drying is uneven.

[0004] In summary, the current drying channel of the hammer type dispersing machine is relatively single, the hot air flow area is small, thereby causing the problems of slow drying speed and uneven drying. SUMMARY

[0005] The purpose of the present application is to provide a desulfurized gypsum hot air circulating hammer type dispersing machine to solve the technical problems of the current hammer type dispersing machine, which has a relatively single drying channel and a small hot air flow area, thereby causing slow drying speed and uneven drying.

[0006] To solve the above technical problems, the present application specifically provides the following technical scheme:

[0007] A desulfurized gypsum hot air circulating hammer type dispersing machine, comprising:

[0008] A machine body, a material dispersing cavity is formed in the center of the inner cavity of the machine body, and an exhaust channel is arranged on the top of the machine body and connected with the material dispersing cavity;

[0009] A hammer head assembly is rotatably connected in the material dispersing cavity for hammering the material entering the material dispersing cavity;

[0010] A hot air member is arranged on one side of the machine body, and the air outlet end of the hot air member is rotatably connected with the hammer head assembly. Under the blowing action of the hot air member, hot gas is introduced into the material dispersing cavity through the hammer head assembly and discharged through the exhaust channel;

[0011] A gas guide channel is formed on the body at the side of the material knocking cavity, one end of the gas guide channel is communicated with the air outlet end of the hot air device, and the other end is communicated with the exhaust channel, the hot air device flows through the gas guide channel and the exhaust channel in sequence and is discharged, so that the circumferential wall of the material knocking cavity is heated and kept warm;

[0012] The hammer head assembly comprises a rotor, a rotating disc and a hammer head, the hammer head is fixed on the rotating disc, and the rotor is connected to the two sides of the rotating disc to drive the rotating disc to rotate.

[0013] The inner cavity of the rotating disc is provided with a gas cavity along the length direction of the rotating disc, the two ends of one of the rotors are communicated with the air outlet end of the hot air device and the gas cavity respectively, and the surface of the rotating disc is provided with a plurality of rows of micro-hole air channels communicated with the gas cavity.

[0014] Under the blowing action of the hot air device, the hot air flows along the rotating disc and the gas guide channel synchronously and is gathered in the exhaust channel to be discharged, so that the water in the gypsum material in the material knocking cavity is dried and discharged.

[0015] As a preferred scheme of the present application, the hot air device comprises a main air inlet pipe, a first air outlet pipe and a second air outlet pipe, one end of the main air inlet pipe is connected with an external hot air device, the other end of the main air inlet pipe extends into the inner cavity of the body, one end of the first air outlet pipe is connected at the center of the main air inlet pipe, the other end of the first air outlet pipe is rotatably connected with the rotor,

[0016] One end of the second air outlet pipe is connected on the side wall of the main air inlet pipe, the other end of the second air outlet pipe extends into the inner cavity of the body and is communicated with the gas guide channel.

[0017] As a preferred scheme of the present application, the rotor close to one end of the hot air device is a hollow structure, one end of the rotor is rotatably connected with the first air outlet pipe through a bearing, the other end of the rotor is rotatably connected with the rotating disc and extends into the gas cavity.

[0018] The rotor away from one end of the hot air device is a solid structure, one end of the rotor is rotatably connected with the rotating disc, and the other end of the rotor is connected with the power output end of an external driving source.

[0019] As a preferred scheme of the present application, a gas collecting cavity is arranged in the inner cavity of the side wall of the body away from the hot air device, the gas collecting cavity is communicated with the gas guide channel through a pipeline, and the inner cavity center of the gas guide channel is penetrated by the rotor.

[0020] A plurality of parallel air supply air channels are formed on the body between the gas collecting cavity and the exhaust channel.

[0021] As a preferred scheme of the present application, the top of the body on one side of the exhaust passage is provided with a feeding port along the length direction of the top, the bottom of the feeding port penetrates the inner cavity of the air guide passage and is in communication with the material beating chamber;

[0022] The bottom of the body is provided with a discharging port along the length direction of the bottom, the top of the discharging port penetrates the inner cavity of the air guide passage and is in communication with the material beating chamber, and the inner cavity of the discharging port is provided with an electromagnetic gate valve.

[0023] As a preferred scheme of the present application, the micro-porous air passage is arranged in parallel with the hammer head piece to blow out the hot air directly to the gypsum material beaten by the hammer head piece.

[0024] As a preferred scheme of the present application, the circumferential outer side of the rotating disc is provided with a plurality of mounting slots with open ends along the length direction of the circumferential outer side, and the mounting slots are located between adjacent two rows of the micro-porous air passages.

[0025] The inner cavity of each mounting slot is fixedly connected with a limiting piece through a bolt, and a plurality of hammer head pieces are inserted into each limiting piece.

[0026] As a preferred scheme of the present application, the limiting piece comprises a limiting seat, an end-closed limiting slot is opened on the side surface of the limiting seat away from the rotating disc, a limiting rod is mounted in the inner cavity of the limiting slot, and a plurality of hammer head pieces are fixedly connected on the limiting rod in the same limiting slot.

[0027] As a preferred scheme of the present application, a plurality of insertion slots are opened on the surface of the limiting seat along the length direction of the limiting slot, the insertion slots are in perpendicular communication with the limiting slot, the inner cavities of the insertion slots are in insertion connection with the connecting ends of the hammer head pieces.

[0028] The inner cavities of the limiting seats at both ends of the limiting slot are provided with through holes through which the limiting rods pass, and one end of the limiting rod protruding out of the through hole is fixed on the limiting seat through a nut.

[0029] As a preferred scheme of the present application, the hammer head piece comprises a hammer head, a hammer handle and a fixing piece, one end of the hammer handle is inserted into the hammer head, the fixing piece penetrates the connection between the hammer head and the hammer handle to fix the hammer head and the hammer handle, one end of the hammer handle away from the hammer head is inserted into the insertion slot, and the end of the hammer handle inserted into the insertion slot is provided with a mounting hole through which the limiting rod passes.

[0030] Compared with the prior art, the present application has the following beneficial effects:

[0031] The application improves the drying speed of gypsum material in the material knocking cavity by changing the flow route of hot gas, that is, a heating mode of double heating gas channels is set, one of which directly heats the material in the material knocking cavity and removes moisture through the flow of gas, and the other indirectly heats the material in the material knocking cavity and plays a heat preservation role, so as to realize the heating and drying of the whole material knocking cavity, and the drying speed is fast and uniform.

[0032] Meanwhile, the hot gas discharged through the multiple rows of micro-porous gas channels changes the direction of gas outlet with the reciprocating change of the rotation of the rotating disc, so as to further expand the heating area of the hot gas, and the gas flow vortex can also be formed in the rotating multiple rows of micro-porous gas channels, which has a turning effect on the material in the material knocking cavity, and is more conducive to the uniform drying of the gypsum material. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and other drawings can also be obtained according to the provided drawings without creative labor for those skilled in the art.

[0034] Figure 1 The overall structure of the device provided by the present application is a front view of a sectional view;

[0035] Figure 2 The overall structure of the device provided by the present application is a schematic view of an A-A sectional view;

[0036] Figure 3 The overall structure of the device provided by the present application is a schematic view of a B-B sectional view;

[0037] Figure 4 The sectional side view of the rotating disc provided by the present application is shown in the figure;

[0038] Figure 5 The structure schematic view of the limiting piece provided by the present application is shown in the figure;

[0039] Figure 6 The structure schematic view of the hammer head piece provided by the present application is shown in the figure;

[0040] The numbers in the figure respectively represent as follows:

[0041] 1, machine body; 2, material knocking cavity; 3, exhaust passage; 4, hammer head assembly; 5, hot air piece; 6, air guide passage; 7, air supply gas channel; 8, feeding port; 9, discharging port; 10, electromagnetic gate valve; 11, mounting groove; 12, limiting piece; 13, insertion slot; 14, hammer head; 15, hammer handle; 16, fixing piece; 17, mounting hole;

[0042] 41, rotor; 42, rotating disc; 43, hammer head; 44, air cavity; 45, micro-hole air passage; 46, air collecting cavity;

[0043] 51, main air inlet pipe; 52, first air outlet pipe; 53, second air outlet pipe.

[0044] 121, limiting seat; 122, limiting groove; 123, limiting rod; 124, through hole. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0046] As shown in Figure 1 A hot air circulating hammer type scattering machine for desulfurized gypsum comprises:

[0047] A machine body 1 is provided with a feeding port 8 at the top of the machine body 1 on one side of an exhaust passage 3 along the length direction of the machine body 1, the bottom of the feeding port 8 penetrates the inner cavity of a gas guiding passage 6, and the feeding port 8 is in communication with a material beating cavity 2; the machine body 1 is provided with a discharging port 9 at the bottom of the machine body 1 along the length direction of the machine body 1, the top of the discharging port 9 penetrates the inner cavity of the gas guiding passage 6, and the discharging port 9 is in communication with the material beating cavity 2; the inner cavity of the discharging port 9 is provided with an electromagnetic gate valve 10; the material beating cavity 2 is arranged at the center of the inner cavity of the machine body 1; the machine body 1 is provided with the exhaust passage 3 at the top of the machine body 1, which is in communication with the material beating cavity 2; a hammer head assembly 4 is rotatably connected in the material beating cavity 2, and is used for beating the material in the material beating cavity 2; a hot air piece 5 is arranged on one side of the machine body 1, and the air outlet end of the hot air piece 5 is in rotatable communication with the hammer head assembly 4; under the blowing action of the hot air piece 5, the hot gas is guided into the material beating cavity 2 through the hammer head assembly 4, and is discharged through the exhaust passage 3.

[0048] The material is fed into the discharge chamber 2 through the feed inlet 8, dried, and then discharged through the discharge outlet 9. The closure of the discharge outlet 9 is mainly controlled by the electromagnetic gate valve 10. During drying, the hot air component 5 introduces hot air from the outside into the discharge chamber 2 through the hammer assembly 4. The hammer assembly 4 gradually sprays out hot gas as it rotates, drying the gypsum material. The entire hammer assembly 4 is a drying surface, covering a large area. The hot air flows within the discharge chamber 2, carrying away the dried moisture and achieving the effect of drying the gypsum material. However, during the drying process, the hot air flows towards the inner cavity and diffuses towards the side walls. Because the gas temperature in the middle is higher than that on the periphery, and the dispersed material first contacts the side walls of the discharge chamber 2, where the temperature is lower, the gypsum material in the entire discharge chamber 2 can only be dried when the amount of hot gas in the cavity reaches a certain level. Therefore, the drying speed is relatively slow. Figure 1 The arrows in the diagram indicate the path of the hot gas flow.

[0049] Furthermore, such as Figures 2-3 As shown, an air guide channel 6 is provided on the body 1 located on the periphery of the feeding chamber 2. One end of the air guide channel 6 is connected to the air outlet of the hot air component 5, and the other end is connected to the exhaust channel 3. The hot air component 5 circulates and discharges hot gas through the air guide channel 6 and the exhaust channel 3 in sequence, so as to heat and keep the circumferential side wall of the feeding chamber 2 warm.

[0050] The hot air from the hot air component 5 is divided into two parts and brought into the machine body 1 by the air guide channel 6. One part is used to dry the material in the feeding chamber 2, and the other part is input into the air guide channel 6. Since the air guide channel 6 is wrapped around the feeding chamber 2, the temperature of the air guide channel into the hot air increases. This can heat the inner side of the feeding chamber 2 and also keep the feeding chamber 2 warm, so that the moisture in the feeding chamber 2 is dried quickly.

[0051] This invention improves the drying speed of gypsum material in the feeding chamber by changing the flow path of hot gas. Specifically, it sets up a dual heating air channel. One air channel directly heats the material in the feeding chamber 2 and removes moisture through the flow of gas. The other air channel indirectly heats the material in the feeding chamber 2 and also serves to keep it warm, thereby achieving heating and drying of the entire feeding chamber 2.

[0052] Specifically, such as Figures 1-4 As shown, the hammer assembly 4 includes a rotor 41, a turntable 42, and a hammer head 43. The hammer head 43 is fixed on the turntable 42, and the rotor 41 is connected to both sides of the turntable 42 to drive the turntable 42 to rotate. An air chamber 44 is formed in the inner cavity of the turntable 42 along its own length direction. The two ends of one of the rotors 41 are respectively connected to the air outlet of the hot air component 5 and the air chamber 44. The surface of the turntable 42 is provided with multiple rows of microporous air channels 45 that are connected to the air chamber 44.

[0053] In the drying, the hot air member 5 guides hot gas into the rotor 41, since the rotor 41 close to the one end of the hot air member 5 is hollow structure, the one end of the rotor 41 is rotatably connected between the first air outlet pipe 52, and the other end is rotatably connected with the rotating disc 42 and extends into the air cavity 44, therefore, the gas in the hot air member 5 is guided into the air cavity 44 through the rotor 41, and the hot gas flowing in the air cavity 44 is guided into the material striking cavity 2 through the multiple rows of micro-porous air channels 45.

[0054] The rotor 41 far away from the one end of the hot air member 5 is solid structure, the one end of the rotor 41 is rotatably connected with the rotating disc 42, and the other end is connected with the power output end of the external driving source, the hot gas guided out through the multiple rows of micro-porous air channels 45 changes the direction of air outlet with the rotation of the rotating disc 42, thereby further expanding the heating area of the hot gas, and the air vortex can be formed in the rotating multiple rows of micro-porous air channels 45, which has the effect of turning over in the material striking cavity 2, and is more conducive to the drying of the gypsum material.

[0055] In order to guide the hot gas into the air cavity 44 and the gas guiding channel 6 at the same time, therefore, the air cavity 44 and the gas guiding channel 6 need to be communicated with the hot air member 5 at the same time.

[0056] Specifically, as shown in Figures 1-3 The hot air member 5 includes the main air inlet pipe 51, the first air outlet pipe 52 and the second air outlet pipe 53, one end of the main air inlet pipe 51 is connected with the external heating air equipment, and the other end extends into the inner cavity of the machine body 1, one end of the first air outlet pipe 52 is connected at the center of the main air inlet pipe 51, and the other end is rotatably connected with the rotor 41, one end of the second air outlet pipe 53 is connected on the side wall of the main air inlet pipe 51, and the other end extends into the inner cavity of the machine body 1 and is communicated with the gas guiding channel 6.

[0057] When heating is needed, the hot air member 5 guides the hot air through the main air inlet pipe 51, and the two air flows are guided into the air cavity 44 and the gas guiding channel 6 through the first air outlet pipe 52 and the second air outlet pipe 53.

[0058] The second air outlet pipe 53 is provided with at least four, and the four second air outlet pipes 53 are distributed on the same position of the circular arc surface of the main air inlet pipe 51.

[0059] Since the entering hot gas will enter into the exhaust channel 3 after drying, although the hot gas in the material striking cavity 2 will take away the water in the gypsum, it will also carry a small amount of gypsum powder after being scattered, and after the exhaust through the exhaust channel 3, the powder will be discharged to the external environment, which will cause harm to the operator, in order to reduce the overflow of the powder, the powder blocking assembly needs to be arranged in the exhaust channel 3.

[0060] Specifically, as shown in Figure 1As shown, the inner cavity of the side wall of the body 1 away from the hot air piece 5 is provided with a gas collecting cavity 46, which is connected with the air guide channel 6 through a pipeline; the inner cavity center of the air guide channel 6 is penetrated by the rotor 41, and a plurality of parallel air feeding channels 7 are provided on the body 1 between the gas collecting cavity 46 and the air exhaust channel 3.

[0061] The air feeding channel 7 guides the hot air flowing in the air guide channel 6 into the air exhaust channel 3, and the air feeding channel 7 guides another gas perpendicular to the hot air flow direction in the material knocking cavity 2, and the impact force of the air feeding channel 7 realizes the air seal of the air exhaust channel 3, and achieves the blocking of the powder.

[0062] Since the hammer head piece 43 is in direct contact with the gypsum powder, the possibility of wear and damage is also the largest, and once damaged, it needs to be replaced. In order to achieve the separate replacement of the damaged part, the connection mode of the hammer head piece 43 and the rotating disc 42 needs to be designed.

[0063] Specifically, as shown in the figure, Figures 2-5 The circumferential outer side of the rotating disc 42 is provided with a plurality of open-ended installation grooves 11 along the length direction thereof, the installation grooves 11 are located between the adjacent two rows of micro-hole air channels 45, the inner cavity of each installation groove 11 is fixedly connected with a limiting piece 12 through a bolt, and a plurality of hammer head pieces 43 are inserted on each limiting piece 12.

[0064] Further, as shown in the figure, Figure 5 The limiting piece 12 includes a limiting seat 121, the side surface of the limiting seat 121 away from the rotating disc 42 is provided with a closed-end limiting groove 122, the inner cavity of the limiting groove 122 is provided with a limiting rod 123, and a plurality of hammer head pieces 43 are fixedly connected on the limiting rod 123 located in the same limiting groove 122.

[0065] The rotating disc 42 and the hammer head piece 43 are fixedly connected through the limiting piece 12, in the installation, the limiting seat 121 on the limiting piece 12 is inserted into the limiting groove 122, and is fixed through a bolt, and the surface of the limiting seat 121 is horizontal with the surface of the rotating disc 42, thereby being beneficial to guarantee the smoothness of the outer surface of the rotating disc 42.

[0066] In the installation, considering the connection relationship between the hammer head piece 43 and the limiting seat 121, the hammer head piece 43 needs to be not only installed firmly in the limiting seat 121, but also detachable.

[0067] Specifically, as shown in the figure, Figure 5As shown, the surface of the limiting seat 121 along the length direction of the limiting groove 122 is provided with a plurality of insertion grooves 13, the plurality of insertion grooves 13 are in vertical communication with the limiting groove 122, and the inner cavities of the plurality of insertion grooves 13 are in insertion connection with the connecting end of the hammer head piece 43; the inner cavities of the limiting seats 121 at both ends of the limiting groove 122 are provided with through holes 124 through which limiting rods 123 pass, and one end of the limiting rod 123 extending out of the through hole 124 is fixed on the limiting seat 121 through a nut.

[0068] In the installation, the hammer handle 15 in the hammer head piece 43 is inserted into the insertion groove 13, and it is ensured that the mounting holes 17 on the hammer handle 15 inserted into the insertion groove 13 are on the same straight line, after installation, the limiting rod 123 is sequentially inserted through the through hole 124 and the mounting hole 17, that is, the hammer handle 15 on the plurality of hammer head pieces 43 is limited in the insertion groove 13, and finally the limiting rod 123 at both ends is fixed on the limiting seat 121 through the nut, when disassembling, only need to reverse rotate the nuts at both ends, and sequentially disassemble the limiting rod 123 and the hammer head piece 43.

[0069] Further, as shown in the drawings, Figure 6 The hammer head piece 43 includes a hammer head 14, a hammer handle 15 and a fixing piece 16, one end of the hammer handle 15 is inserted into the hammer head 14, the fixing piece 16 penetrates the connection between the hammer head 14 and the hammer handle 15 to fix the hammer head 14 and the hammer handle 15, one end of the hammer handle 15 away from the hammer head 14 is inserted into the insertion groove 13, and the one end of the hammer handle 15 inserted into the insertion groove 13 is provided with a mounting hole 17 through which the limiting rod 123 passes, and the hammer head 14 and the hammer handle 15 in a split type are beneficial to the separate replacement of the hammer head 14 and the hammer handle 15.

[0070] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application, the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements are also regarded as falling within the protection scope of the present application.

Claims

1. A hot air circulating hammer mill for desulfurized gypsum, characterized in that, include: The machine body (1) has a feeding chamber (2) at the center of its inner cavity, and an exhaust channel (3) connected to the feeding chamber (2) is provided on the top of the machine body (1). Hammer assembly (4) is rotatably connected in the material feeding chamber (2) and is used to hammer the material entering the material feeding chamber (2); Hot air component (5) is provided on one side of the machine body (1), and the air outlet of hot air component (5) is rotatably connected to hammer assembly (4). Under the blowing action of hot air component (5), hot gas is introduced into the material discharge chamber (2) through hammer assembly (4) and discharged through exhaust channel (3). An air guide channel (6) is provided on the machine body (1) located on the periphery of the feeding chamber (2). One end of the air guide channel (6) is connected to the air outlet of the hot air component (5), and the other end is connected to the exhaust channel (3). The hot air component (5) circulates and discharges hot gas through the air guide channel (6) and the exhaust channel (3) in sequence to heat and keep the circumferential sidewall of the feeding chamber (2) warm. The hammer assembly (4) includes a rotor (41), a turntable (42) and a hammer part (43). The hammer part (43) is fixed on the turntable (42), and the rotor (41) is connected to both sides of the turntable (42) to drive the turntable (42) to rotate. The inner cavity of the turntable (42) is provided with an air chamber (44) along its own length direction. One of the rotors (41) is connected to the air outlet of the hot air component (5) and the air chamber (44) at both ends respectively. The surface of the turntable (42) is provided with multiple rows of microporous air channels (45) that are connected to the air chamber (44). Under the blowing action of the hot air component (5), the hot air flows synchronously along the turntable (42) and the air guide channel (6) and converges in the exhaust channel (3) to discharge, so as to dry and remove the moisture in the gypsum material located in the feeding chamber (2); An air collecting chamber (46) is provided in the inner cavity of the side wall of the body (1) away from the hot air component (5). The air collecting chamber (46) is connected to the air guiding channel (6) through a pipe. The center of the inner cavity of the air guiding channel (6) is penetrated by the rotor (41). Several parallel air supply channels (7) are provided on the body (1) between the air collection chamber (46) and the exhaust channel (3). The microporous air channel (45) is arranged parallel to the hammer head (43) so as to blow hot air directly onto the gypsum material that has been broken up by the hammer head (43); The air delivery channel (7) introduces the hot air flowing out of the air guide channel (6) into the exhaust channel (3), and the air delivery channel (7) outputs another gas perpendicular to the direction of the hot air flow in the feeding chamber (2). The air delivery channel (7) achieves air sealing of the exhaust channel (3) through the impact force of the air delivery channel (7), thereby blocking the powder.

2. The desulfurized gypsum hot air circulating hammer mill according to claim 1, characterized in that, The hot air component (5) includes a main air inlet pipe (51), a first air outlet pipe (52), and a second air outlet pipe (53). One end of the main air inlet pipe (51) is connected to an external hot air device, and the other end extends into the inner cavity of the machine body (1). One end of the first air outlet pipe (52) is connected to the center of the main air inlet pipe (51), and the other end is rotatably connected to the rotor (41). One end of the second air outlet pipe (53) is connected to the side wall of the main air inlet pipe (51), and the other end extends into the inner cavity of the body (1) and is connected to the air guide channel (6).

3. The desulfurized gypsum hot air circulating hammer mill according to claim 2, characterized in that, The rotor (41) near one end of the hot air component (5) is a hollow structure. One end of the rotor (41) is rotatably connected to the first air outlet pipe (52) through a bearing, and the other end is rotatably connected to the turntable (42) and extends into the air chamber (44). The rotor (41) at the end away from the hot air component (5) is a solid structure. One end of the rotor (41) is rotatably connected to the turntable (42), and the other end is connected to the power output end of the external drive source.

4. The desulfurized gypsum hot air circulating hammer mill according to claim 1, characterized in that, The top of the body (1) located on one side of the exhaust channel (3) is provided with a feed inlet (8) along its own length direction. The bottom of the feed inlet (8) penetrates the inner cavity of the air guide channel (6) and is connected to the material discharge chamber (2). The bottom of the machine body (1) is provided with a discharge port (9) along its own length direction. The top of the discharge port (9) passes through the inner cavity of the air guide channel (6) and is connected to the feeding chamber (2). The inner cavity of the discharge port (9) is provided with an electromagnetic gate valve (10).

5. A desulfurized gypsum hot air circulating hammer mill according to claim 2, characterized in that, The turntable (42) has several mounting slots (11) with openings at both ends on its outer circumference along its length direction. The mounting slots (11) are located between two adjacent rows of microporous air channels (45). The inner cavity of each of the mounting slots (11) is fixedly connected to a limiting member (12) by bolts, and several hammerheads (43) are inserted into each of the limiting members (12).

6. The desulfurized gypsum hot air circulating hammer mill according to claim 5, characterized in that, The limiting component (12) includes a limiting seat (121). The limiting seat (121) has a limiting groove (122) with closed ends on one side surface away from the turntable (42). A limiting rod (123) is installed in the inner cavity of the limiting groove (122). Several hammerheads (43) are fixedly connected to the limiting rod (123) located in the same limiting groove (122).

7. A desulfurized gypsum hot air circulating hammer mill according to claim 6, characterized in that, Several slots (13) are provided on the surface of the limiting seat (121) along the length direction of the limiting groove (122). The several slots (13) are perpendicularly connected to the limiting groove (122), and the inner cavity of the several slots (13) is inserted into the connecting end of the hammer head (43). The inner cavity of the limiting seat (121) located at both ends of the limiting groove (122) is provided with a through hole (124) through which the limiting rod (123) passes. The end of the limiting rod (123) extending out of the through hole (124) is fixed to the limiting seat (121) by a nut.

8. A desulfurized gypsum hot air circulating hammer mill according to claim 7, characterized in that, The hammer head component (43) includes a hammer head (14), a hammer handle (15), and a fixing member (16). One end of the hammer handle (15) is inserted into the hammer head (14). The fixing member (16) passes through the connection between the hammer head (14) and the hammer handle (15) to fix the hammer head (14) and the hammer handle (15). The end of the hammer handle (15) away from the hammer head (14) is inserted into the slot (13). The end of the hammer handle (15) inserted into the slot (13) has a mounting hole (17) for the limiting rod (123) to pass through.

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