Method for producing and purifying calcium carbonate for desulfurization

Abstract

The application discloses a kind of calcium carbonate production purification methods for desulfurization, S1, ore calcination: limestone is put into the calcination ring cylinder contained in calcination reaction mechanism and is carried out high-temperature calcination;S2, ore shaving: after calcination is completed, calcium oxide is shaved out using shaving bar, and the calcium oxide is put into the first bin inside contained in purification reaction mechanism, the present application relates to calcium carbonate production technical field.The calcium carbonate production purification method for desulfurization, by the combined use of calcination reaction mechanism and purification reaction mechanism, the setting of the two mechanisms, the accumulated limestone can be dispersed, so that calcination is more sufficient and more efficient, and when the horizontal pull rod is opened by the subsequent air cylinder to push the material supporting plate to unload, cross bottom plate can also be pushed down using inclined surface pressing plate to make stirring blade rotate alone, so that calcium oxide and water are fully mixed into milk, and when extracting, multi-face seat can also continue to use stirring blade to stir to avoid precipitation.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of calcium carbonate production, in particular to a calcium carbonate production and purification method for desulfurization. BACKGROUND

[0002] Calcium carbonate is an inorganic compound, is the main component of limestone, marble and the like, and is also an important building material and is widely used in industry. The calcium carbonate for desulfurization is generally heavy calcium carbonate. However, the existing calcium carbonate production and purification device has low efficiency, and the carbon dioxide generated in the process of calcining limestone in the calcining furnace is not treated and is discharged into the atmosphere, thereby causing the greenhouse effect. Patent documents have improved this.

[0003] For example, a calcium carbonate production and purification device is disclosed in Chinese Patent No. CN207845176U. The device comprises a support table, an air extractor, a first discharge port, a second discharge port and a baffle. A calcining furnace is detachably installed above the support table. An observation port is fixedly installed on the front face of the calcining furnace. An air pipe is fixedly installed on the right side above the calcining furnace. An inlet is fixedly installed on the left side of the calcining furnace. A first conveyor belt is fixedly installed inside the calcining furnace below. An electromagnetic heating pipe is fixedly installed above the first conveyor belt. A first reaction chamber is fixedly installed on the right side of the support table. A third discharge port is fixedly installed below the second reaction chamber. The device has a simple structure and high reaction effect. When calcium hydroxide and carbon dioxide react in the second reaction chamber, heating is performed to improve the reaction rate and protect the ecological environment. The carbon dioxide produced by calcining limestone is used to react with calcium hydroxide in the second reaction chamber, thereby avoiding the emission of the generated carbon dioxide into the atmosphere and causing the greenhouse effect.

[0004] The device in the above document can bring carbon dioxide into the container to react with calcium hydroxide to generate calcium carbonate. However, the device still has obvious defects in actual use, such as:

[0005] The device transports limestone to the calcining device through the conveyor belt for calcination. However, the accumulated limestone cannot be fully combusted inside, and cannot be used to produce calcium hydroxide emulsion with high purity. If the calcination time is prolonged, the production and purification efficiency of calcium carbonate is reduced. In each step, the baffle is used for isolation. After water and calcium oxide are stirred, a solution or emulsion is directly generated. The subsequent reaction with carbon dioxide cannot be isolated by the baffle, which can cause liquid leakage. Most importantly, after the carbon dioxide is injected into the reaction chamber, the first cannot penetrate the emulsion or solution, causing the emulsion at the top to form an isolation layer, and the bottom emulsion cannot be effectively reacted. The second, the carbon dioxide is continuously injected into the reaction chamber, which can cause the pressure inside the reaction chamber to change, and the precipitate further reacts to generate soluble calcium bicarbonate, which can cause the precipitate to disappear and have no turbidity.

[0006] Therefore, now a calcium carbonate production and purification method for desulfurization is designed to improve efficiency and quality to solve such defects. SUMMARY

[0007] In view of the deficiencies of the prior art, the present application provides a calcium carbonate production and purification method for desulfurization, which solves the problem of slow efficiency and unstable operation of existing calcium carbonate production and purification equipment.

[0008] To achieve the above object, the present application is implemented by the following technical scheme: a calcium carbonate production and purification method for desulfurization, specifically comprising the following steps:

[0009] S1, ore calcination: limestone is put into the calcination ring cylinder contained in the calcination reaction mechanism for high-temperature calcination;

[0010] S2, ore shaving: after calcination is completed, calcium oxide is shaved out using a shaving rod, and the calcium oxide is put into the first bin contained in the purification reaction mechanism;

[0011] S3, milk slurry preparation: calcium hydroxide solution is prepared by stirring calcium oxide using a second rotating rod;

[0012] S4, stirring reaction: carbon dioxide is introduced into the second bin to react with the calcium hydroxide solution to generate calcium carbonate.

[0013] Preferably, the calcination reaction mechanism comprises a calcination box, arc-shaped rotating frames are fixedly connected to both sides of the front and rear parts of the inner cavity of the calcination box, a calcination ring cylinder is rotatably connected to the inner side of the arc-shaped rotating frame, a feeding port is formed in the top of the calcination ring cylinder, a blocking cover is rotatably connected to the inner side of the feeding port through a bearing piece, first springs are fixedly connected to the top of the calcination ring cylinder through a fixed plate, one end of the first spring is fixedly connected to the blocking cover, a first motor is fixedly connected to the left side of the calcination box through a support, a first rotating rod is fixedly connected to the output shaft of the first motor through a coupling, and one end of the first rotating rod penetrates through the calcination box and is fixedly connected to one side of the calcination ring cylinder, a heater is fixedly installed on the right side of the calcination box, and one end of the heater penetrates through the calcination box and the calcination ring cylinder in sequence and extends to the inner side of the calcination ring cylinder.

[0014] Preferably, side clamping grooves are formed in the front and rear parts of the inner cavity of the calcination ring cylinder, circular through holes penetrating to the outside of the calcination ring cylinder are formed in the inner side of the side clamping grooves, guide sliding holes matched with the circular through holes are formed in the front and rear parts of the calcination box, shaving rods matched with the circular through holes are slidingly installed in the inner side of the guide sliding holes, transverse pressure rods are fixedly connected to one end of the shaving rods away from the calcination box, and second springs are sleeved on the surfaces of the shaving rods on both sides.

[0015] Preferably, the bottom of the calcination box is provided with a lifting opening, the inner side of the lifting opening is slidably provided with a material guiding inclined frame, the top of the material guiding inclined frame is fixedly connected with an arc-shaped bottom plate, the arc-shaped bottom plate is attached to the bottom of the calcination ring cylinder, the bottom of the arc-shaped bottom plate is provided with a discharging opening, the inner side of the discharging opening is rotatably connected with a material supporting plate through a bearing piece, the front and rear portions of the material guiding inclined frame and located inside the calcination box are provided with side guide openings, the inner side of the side guide openings is slidably provided with a round supporting rod, the round supporting rod is in contact with the bottom of the material supporting plate, the front and rear portions of the left side of the calcination box are slidably provided with horizontal pull rods through openings, the right ends of the horizontal pull rods extend to the inner side of the calcination box, the opposite sides of the two horizontal pull rods and located inside the calcination box are fixedly connected with limiting sliding frames, and the front and rear ends of the round supporting rod are slidably connected with the adjacent limiting sliding frames.

[0016] Preferably, the bottom of the calcination box is fixedly connected with an air extractor, the air inlet of the air extractor is fixedly connected with an air extraction pipe, one end of the air extraction pipe penetrates through the calcination box and extends to the inside of the calcination box, and the air outlet of the air extractor is fixedly connected with an air exhaust pipe.

[0017] Preferably, the left side of the calcination box is fixedly connected with an air cylinder, the left end of the air cylinder is fixedly connected with an arc-shaped frame, the right end of the arc-shaped frame is fixedly connected with an inclined vertical plate through a support, the inclined vertical plate is located on the right side of the calcination box, the left end of the horizontal pull rod is fixedly connected with the arc-shaped frame, the front and rear sides of the bottom of the arc-shaped frame are fixedly connected with inclined pressing plates, a load bearing supporting rod is fixedly connected between the two inclined pressing plates, and the load bearing supporting rod is in contact with the bottom of the material guiding inclined frame.

[0018] Preferably, the purification reaction mechanism comprises a first bin and a second bin, and the first bin and the second bin are located at the lower part of the calcination box, the bottom end of the material guiding inclined frame penetrates through the first bin and extends to the inside of the first bin, the left side of the first bin is fixedly provided with a material extraction box through an opening, the bottom of the first bin is fixedly connected with a second motor through a support, the output shaft of the second motor is fixedly connected with a second rotating rod through a shaft coupling, the top end of the second rotating rod penetrates through the first bin and extends to the inside of the first bin, and the surface of the second rotating rod and located inside the first bin is fixedly connected with stirring blades.

[0019] Preferably, the top of the material extraction box is rotatably connected with a third rotating rod through an opening, the bottom end of the third rotating rod penetrates the material extraction box and extends to the bottom of the material extraction box, a main air guide pipe is fixedly connected to the surface of the third rotating rod and located inside the material extraction box, a material rotating horizontal pipe is in communication between the material extraction box and the second material bin, a multi-surface seat is fixedly connected to the end of the third rotating rod extending to the bottom of the material extraction box, a multi-angle guide groove is formed in the surface of the second rotating rod, a rebound rod is fixedly connected to the front side and the rear side of the bottom of the first material bin, a cross bottom plate is slidingly installed between the surfaces of the two rebound rods, a third spring is sleeved on the surface of the rebound rod, and a first belt pulley is rotatably connected to the top of each side of the cross bottom plate through an opening, the two first belt pulleys are slidingly installed on the surfaces of the multi-surface seat and the multi-angle guide groove respectively, and the two first belt pulleys are drivingly connected through a first belt.

[0020] Preferably, the top of the second material bin is rotatably connected with a main air guide pipe through an opening, and the two sides of the surface of the main air guide pipe are fixedly connected with L-shaped exhaust pipes through openings.

[0021] Preferably, a sealing bearing is installed at the top end of the main air guide pipe, the bottom end of the exhaust pipe is connected with the sealing bearing, and an electromagnetic valve is fixedly installed at the bottom of the second material bin through an opening.

[0022] The application provides a calcium carbonate production and purification method for desulfurization.

[0023] (1) The calcium carbonate production and purification method for desulfurization combines the calcination reaction mechanism and the purification reaction mechanism, the two mechanisms are arranged to disperse the accumulated limestone, so that the calcination is more sufficient and efficient, and when the horizontal pull rod is pushed by the subsequent air cylinder to open the material supporting plate for discharging, the inclined pressing plate can push the cross bottom plate downward to make the stirring blades rotate alone, so that the calcium oxide and water are fully mixed into milk slurry, and when the multi-surface seat is extracted, the stirring blades can continue to stir to avoid precipitation, and when the reaction is carried out in the second material bin, the carbon dioxide can be directly sprayed from the bottom of the emulsion, so that the generation efficiency and quality of calcium carbonate are effectively improved.

[0024] (2), the calcium carbonate production purification method for desulfurization, the calcination ring cylinder is installed in the inside of the calcination box by using the arc-shaped rotating frame, side clamping grooves are arranged on both sides of the inner cavity of the calcination ring cylinder, and the side clamping grooves are used in cooperation with the blocking cover, the inclined vertical plate and the shaving block rod, the setting of these structures can make the accumulated part of the limestone enter the side clamping groove and be separated from the bottom limestone when the calcination ring cylinder rotates, and finally, the relatively large stone blocks are clamped on the inner side of the side clamping groove, part of the limestone can be separated and heated when the side clamping groove is located on both sides, and meanwhile, the density of the bottom accumulated limestone is reduced, so that the heating is more sufficient, and the calcination efficiency and quality are effectively improved, and stability is provided for the subsequent production and purification process.

[0025] (3), the calcium carbonate production purification method for desulfurization, the cross bottom plate is installed at the bottom of the first bin by using the rebound rod, the first belt pulley is rotatably connected to the top of the cross bottom plate, and the inclined vertical plate and the inclined vertical plate are used in cooperation with the inclined vertical plate, the setting of these structures can make the load supporting rod descend and open the material supporting plate, and the inclined vertical plate can extrude a plurality of horizontal pressure rods, so that the shaving block rod can shave the calcium oxide on the inner side of the side clamping groove, so as to ensure the stability of the discharging, and at the same time, the inclined vertical plate can press the cross bottom plate to drive the first belt pulley and the multi-surface seat to separate, so that the calcium oxide after descending can be fully mixed with water into calcium hydroxide emulsion by the separate rotation of the stirring blade, the efficiency of the subsequent reaction is improved, and after the discharging is completed, the first belt pulley is reconnected with the multi-surface seat, the multi-surface seat is used to extract the emulsion at the same time, and the emulsion can be continuously stirred to avoid deposition, so as to ensure the stability of the emulsion in the transportation process.

[0026] (4), the calcium carbonate production purification method for desulfurization, L-shaped exhaust pipes are arranged on both sides of the main guide pipe, the gas outlets of the L-shaped exhaust pipes are downwardly and deeply arranged in the deepest part of the second bin, and the L-shaped exhaust pipes also stir the emulsion as a whole, so that the carbon dioxide can be directly injected into the bottom layer of the calcium hydroxide emulsion, and then gradually float up, and in cooperation with the stirring of the L-shaped exhaust pipe, the contact area of the carbon dioxide and the emulsion can be effectively improved, so as to improve the production and purification efficiency of the calcium carbonate. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the flowchart of the present application;

[0028] Figure 2 It is the structural schematic diagram of the present application;

[0029] Figure 3 It is the bottom view of the calcination reaction mechanism and the purification reaction mechanism structure of the present application;

[0030] Figure 4 It is the sectional view of the calcination box, the first bin and the second bin structure of the present application;

[0031] Figure 5 A side view of the internal structure of the calcination box of the present application;

[0032] Figure 6 A schematic view of the calcination ring cylinder, blocking cover and first spring structure of the present application;

[0033] Figure 7 A sectional view of the calcination ring cylinder structure of the present application;

[0034] Figure 8 A schematic view of the calcination box of the present application Figure 7 A partial enlarged view of A in the present application;

[0035] Figure 9 A schematic view of the internal structure of the calcination box of the present application;

[0036] Figure 10 A schematic view of the shaving block rod, transverse pressing rod and second spring structure of the present application;

[0037] Figure 11 A schematic view of the air cylinder, arch frame and inclined vertical plate structure of the present application;

[0038] Figure 12 A sectional view of the material guiding inclined frame structure of the present application;

[0039] Figure 13 A schematic view of the air cylinder, arch frame and inclined vertical plate structure of the present application Figure 12 A partial enlarged view of B in the present application;

[0040] Figure 14 A schematic view of the air cylinder, arch frame and inclined vertical plate structure of the present application;

[0041] Figure 15 A schematic view of the air cylinder, arch frame and inclined vertical plate structure of the present application;

[0042] Figure 16 A schematic view of the air cylinder, arch frame and inclined vertical plate structure of the present application.

[0043] In the figure: 1, calcination reaction mechanism; 2, purification reaction mechanism; 101, calcination box; 102, arc rotating frame; 103, calcination ring cylinder; 104, feeding port; 105, inclined pressing plate; 106, plugging cover; 107, first spring; 108, side clamping groove; 109, round through hole; 110, first motor; 111, first rotating rod; 112, heater; 113, guide sliding hole; 114, shaving block rod; 115, transverse pressing rod; 116, second spring; 117, arc-shaped bottom plate; 118, discharging port; 119, material supporting plate; 120, material guiding inclined frame; 121, side guide port; 122, horizontal pull rod; 123, round supporting rod; 124, air extractor; 125, air extraction pipe; 126, exhaust pipe; 127, lifting port; 128, air cylinder; 129, arc-shaped frame; 130, inclined vertical plate; 131, load-bearing supporting rod; 132, limiting sliding frame; 201, first bin; 202, material extraction box; 203, second bin; 204, second motor; 205, second rotating rod; 206, stirring blade; 207, third rotating rod; 208, multi-surface seat; 209, rebounding rod; 210, cross bottom plate; 211, third spring; 212, first pulley; 213, first belt; 214, second belt; 215, sealing bearing; 216, L-shaped exhaust pipe; 217, electromagnetic valve; 218, main air guide pipe; 219, multi-angle guide groove; 220, material rotating horizontal pipe; 221, second pulley. DETAILED DESCRIPTION

[0044] 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. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0045] Please refer to Figures 1-16 The present application provides a technical solution: a calcium carbonate production and purification method for desulfurization, specifically comprising the following steps:

[0046] S1, ore calcination: limestone is put into the calcination ring cylinder 103 contained in the calcination reaction mechanism 1 for high-temperature calcination;

[0047] S2, ore shaving: after calcination, the calcium oxide is shaved out by the shaving block rod 114, and the calcium oxide is put into the first bin 201 contained in the purification reaction mechanism 2;

[0048] S3, milk slurry preparation: the calcium oxide is stirred to prepare calcium hydroxide solution by the second rotating rod 205;

[0049] S4, stirring reaction: carbon dioxide is introduced into the second bin 203 to react with the calcium hydroxide solution to generate calcium carbonate.

[0050] The above-mentioned calcium carbonate production and purification method for desulfurization is more specific:

[0051] S1, ore calcination: before use, first inject water into the inside of the first bin 201, then put the crushed limestone into the inside of the calcination ring cylinder 103 from the top of the calcination box 101 through the feeding port 104, close the top opening of the calcination box 101 after the filling of the limestone is completed, then start the first motor 110 and the heater 112, and the first motor 110 drives the calcination ring cylinder 103 to rotate counterclockwise by the first rotating rod 111, and the arc-shaped rotating frame 102 will extrude the blocking cover 106 to close the blocking cover 106 and the feeding port 104 when rotating, to ensure that the limestone falls from the feeding port 104 when the calcination ring cylinder 103 rotates, and the heater 112 heats the inside of the calcination ring cylinder 103 to calcine the limestone, in the process of rotating the calcination ring cylinder 103, the stone blocks accumulated inside will be turned up, when the side clamping groove 108 rotates to the bottom, part of the stone blocks will enter the inside of the side clamping groove 108, and the stone blocks with larger volume will be clamped in the inside of the side clamping groove 108, when these stone blocks are carried and rotated to the two sides by the two side clamping grooves 108, the number of stone blocks accumulated at the bottom is effectively reduced, and at the same time, the stone blocks can be calcined separately when they are at the two sides, thereby improving the efficiency and quality of calcination, after the limestone is calcined at high temperature, calcium oxide and carbon dioxide will be generated, and the air extractor 124 extracts the carbon dioxide in the inside of the calcination box 101 through the air extraction pipe 125 and injects it into the inside of the second bin 203 through the exhaust pipe 126, and after the calcination is completed, the feeding port 104 is rotated to the bottom and stopped;

[0052] S2, ore shaving: after the calcination ring cylinder 103 stops, the air cylinder 128 pulls the arc-shaped frame 129, the load supporting rod 131, the inclined pressing plate 105 and the inclined vertical plate 130 to move left synchronously, and the load supporting rod 131 no longer supports the bottom of the guide material inclined frame 120 after moving left, at this time the guide material inclined frame 120 as a whole drops to make the arc-shaped bottom plate 117 no longer limit the opening of the blocking cover 106, then the blocking cover 106 is opened and placed on the top of the arc-shaped bottom plate 117, and then the calcium oxide falls to the top of the arc-shaped bottom plate 117, at the same time, the circular supporting rod 123 slides down along the limiting sliding frame 132, and the arc-shaped frame 129 pulls the horizontal pull rod 122 to move left to make the limiting sliding frame 132 pull the circular supporting rod 123 to move left synchronously, and the left moving circular supporting rod 123 no longer supports the bottom of the material supporting plate 119, at this time the material supporting plate 119 is turned down to open the discharge port 118, and at the same time, the two inclined vertical plates 130 press the front and rear horizontal pressing rods 115 respectively, so that the shaving rod 114 passes through the circular through hole 109 to shave the calcium oxide clamped in the side clamping groove 108 and drop the material, and the two inclined pressing plates 105 press the cross bottom plate 210 to drive the two first belt pulleys 212 to move down synchronously, so that the left first belt pulley 212 is separated from the multi-surface seat 208, and the calcium oxide is guided into the first bin 201, and then the step S3 is turned to;

[0053] S3, milk slurry preparation: at this time, the second motor 204 starts to stir the water and calcium oxide by the second rotating rod 205 and the stirring blade 206, so as to obtain calcium hydroxide milk slurry, after the preparation of calcium hydroxide milk slurry is completed, the air cylinder 128 starts to retract, at this time the arc-shaped frame 129 pushes the inclined pressing plate 105, the inclined vertical plate 130 and the horizontal pull rod 122 to move right synchronously, at this time the circular supporting rod 123 presses the material supporting plate 119 to turn the material supporting plate 119 and close the discharge port 118, at the same time, the load supporting rod 131 presses the guide material inclined frame 120 to rise, so that the arc-shaped bottom plate 117 presses the blocking cover 106 to close again and is attached to the bottom of the calcination ring cylinder 103, and the inclined pressing plate 105 does not press the cross bottom plate 210, so that the left first belt pulley 212 rises again to be connected with the multi-surface seat 208 through the elastic force of the third spring 211, then the limestone is put into the calcination ring cylinder 103 from the top of the calcination box 101, at this time the rotation of the second motor 204 drives the third rotating rod 207 and the main guide pipe 218 to rotate through the transmission of the first belt pulley 212 and the first belt 213, and the rotation of the main guide pipe 218 lifts the calcium hydroxide milk slurry, and then the calcium hydroxide milk slurry is injected into the second bin 203 through the material rotating horizontal pipe 220;

[0054] S4, stirring reaction: after the calcium hydroxide milk enters the second bin 203, the rotation of the third rotating shaft 207 drives the main guide pipe 218 and the L-shaped exhaust pipe 216 to rotate through the transmission of the second belt wheel 221 and the second belt 214. At this time, the carbon dioxide injected into the second bin 203 through the exhaust pipe 126 reacts with the calcium hydroxide milk, and the L-shaped exhaust pipe 216 stirs the calcium hydroxide milk to improve the reaction rate of the carbon dioxide and the calcium hydroxide milk. After the reaction is completed to generate calcium carbonate, the electromagnetic valve 217 is opened to discharge the calcium carbonate.

[0055] The above-mentioned calcium carbonate production and purification method for desulfurization is implemented by the following structure:

[0056] Please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14, show the overall structure of the calcination reaction mechanism 1, the calcination reaction mechanism 1 includes calcination box 101, the inner cavity of calcination box 101 is fixedly connected with the arc-shaped rotating frame 102 on both sides of the front and rear, the inner side of the arc-shaped rotating frame 102 is rotatably connected with the calcination ring cylinder 103, the top of the calcination ring cylinder 103 is provided with a feeding port 104, the inner side of the feeding port 104 is rotatably connected with the blocking cover 106 through the bearing piece, the top of the calcination ring cylinder 103 is fixedly connected with the first spring 107 through the fixed plate, and the first spring 107 is provided with a plurality of first springs 107, one end of the first spring 107 is fixedly connected with the blocking cover 106, the left side of the calcination box 101 is fixedly connected with the first motor 110 through the support, the first motor 110 is a servo motor, and the output shaft of the first motor 110 is fixedly connected with the first rotating rod 111 through the shaft coupling, and one end of the first rotating rod 111 penetrates through the calcination box 101 and is fixedly connected with one side of the calcination ring cylinder 103, the right side of the calcination box 101 is fixedly connected with the heater 112, and one end of the heater 112 penetrates through the calcination box 101 and the calcination ring cylinder 103 in sequence and extends to the inner side of the calcination ring cylinder 103, the front and rear of the inner cavity of the calcination ring cylinder 103 are provided with side clamping grooves 108, the inner side of the side clamping groove 108 is provided with a circular through hole 109 penetrating to the outside of the calcination ring cylinder 103, the front and rear of the calcination box 101 are provided with guide sliding holes 113 matched with the circular through hole 109, the inner side of the guide sliding hole 113 is slidably installed with a shaving block rod 114 matched with the circular through hole 109, a plurality of shaving block rods 114 are distributed in an arc shape according to the calcination ring cylinder 103, the end of the shaving block rod 114 away from the calcination box 101 is fixedly connected with a horizontal pressing rod 115, the surfaces of the two shaving block rods 114 are sleeved with second springs 116;

[0057] The bottom of the calcination box 101 is provided with a lifting port 127, the inner side of the lifting port 127 is slidably installed with a material guiding inclined frame 120, the top of the material guiding inclined frame 120 is fixedly connected with an arc-shaped bottom plate 117, and the arc-shaped bottom plate 117 is attached to the bottom of the calcination ring cylinder 103, the bottom of the arc-shaped bottom plate 117 is provided with a discharging port 118, and the inner side of the discharging port 118 is rotatably connected with a material supporting plate 119 through a bearing piece, the front and rear of the material guiding inclined frame 120 and located inside the calcination box 101 are provided with side guide ports 121, the inner side of the side guide port 121 is slidably installed with a circular supporting rod 123, and the circular supporting rod 123 is in contact with the bottom of the material supporting plate 119, the front and rear of the left side of the calcination box 101 are slidably installed with horizontal pulling rods 122 through the opening, and the right end of the horizontal pulling rod 122 extends to the inner side of the calcination box 101, the opposite sides of the two horizontal pulling rods 122 and located inside the calcination box 101 are fixedly connected with limiting sliding frames 132, the front end and the rear end of the circular supporting rod 123 are slidably connected with the adjacent limiting sliding frames 132;

[0058] The bottom of the calcination box 101 is fixedly connected with an air extractor 124, the air inlet of the air extractor 124 is fixedly connected with an air extraction pipe 125, one end of the air extraction pipe 125 penetrates through the calcination box 101 and extends to the inside of the calcination box 101, the air outlet of the air extractor 124 is fixedly connected with an exhaust pipe 126, the left side of the calcination box 101 is fixedly connected with a gas cylinder 128, the left end of the gas cylinder 128 is fixedly connected with an arc-shaped frame 129, the right end of the arc-shaped frame 129 is fixedly connected with an inclined vertical plate 130 through a support, the inclined vertical plate 130 is located on the right side of the calcination box 101, the left end of the horizontal pull rod 122 is fixedly connected with the arc-shaped frame 129, the front side and the rear side of the bottom of the arc-shaped frame 129 are both fixedly connected with inclined pressing plates 105, the two inclined pressing plates 105 are fixedly connected with a load-bearing support rod 131, and the load-bearing support rod 131 is in contact with the bottom of the material guide inclined frame 120.

[0059] Please refer to Figure 15 and Figure 16 , which shows the structure of the purification reaction mechanism 2 as a whole, the purification reaction mechanism 2 comprises a first bin 201 and a second bin 203, the second bin 203 is provided with a pipeline for exhaust, the first bin 201 is added with calcium oxide in proportion every time water is injected, so as to ensure that calcium hydroxide milk can be mixed, and the first bin 201 and the second bin 203 are both located at the lower part of the calcination box 101, the bottom end of the material guide inclined frame 120 penetrates through the first bin 201 and extends to the inside of the first bin 201, the left side of the first bin 201 is fixedly installed with a material extraction box 202 through an opening, the bottom of the first bin 201 is fixedly connected with a second motor 204 through a support, the second motor 204 is a servo motor, the output shaft of the second motor 204 is fixedly connected with a second rotating rod 205 through a shaft coupling, the top end of the second rotating rod 205 penetrates through the first bin 201 and extends to the inside of the first bin 201, the surface of the second rotating rod 205 and the inside of the first bin 201 are fixedly connected with stirring blades 206;

[0060] The top of the material drawing box 202 is rotatably connected with a third rotating rod 207 through an opening, and the bottom end of the third rotating rod 207 penetrates through the material drawing box 202 and extends to the bottom of the material drawing box 202, the surface of the third rotating rod 207 and the inner side of the material drawing box 202 are fixedly connected with a main gas guide pipe 218, and the material drawing box 202 and the second material bin 203 are communicated with a material rotating horizontal pipe 220, one end of the third rotating rod 207 extending to the bottom of the material drawing box 202 is fixedly connected with a multi-face seat 208, the surface of the second rotating rod 205 is provided with a multi-angle guide groove 219, the front side and the rear side of the bottom of the first material bin 201 are fixedly connected with rebound rods 209, the surfaces of the two rebound rods 209 are slidably connected with a cross bottom plate 210, the surface of the rebound rod 209 is sleeved with a third spring 211, the two sides of the top of the cross bottom plate 210 are rotatably connected with first belt pulleys 212 through openings, the two first belt pulleys 212 are slidably installed on the surfaces of the multi-face seat 208 and the multi-angle guide groove 219 respectively, and the two first belt pulleys 212 are drivingly connected through a first belt 213;

[0061] The top of the second material bin 203 is rotatably connected with the main gas guide pipe 218 through an opening, the two sides of the surface of the main gas guide pipe 218 are fixedly connected with L-shaped exhaust pipes 216 through openings, the main gas guide pipe 218 and the third rotating rod 207 are drivingly connected through a second belt 214 and a second belt pulley 221, the top end of the main gas guide pipe 218 is provided with a sealing bearing 215, the bottom end of the exhaust pipe 126 is connected with the sealing bearing 215, and the bottom of the second material bin 203 is fixedly installed with an electromagnetic valve 217 through an opening.

[0062] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

Claims

1. A method for producing and purifying calcium carbonate for desulfurization, characterized in that: Specifically, the following steps are included: S1, Ore Calcination: Limestone is put into the calcination ring cylinder (103) contained in the calcination reaction mechanism (1) for high-temperature calcination; S2, Ore scraping: After calcination, calcium oxide is scraped out using a scraping rod (114) and put into the first hopper (201) of the purification reaction mechanism (2); S3, Emulsion preparation: Calcium hydroxide solution is prepared by stirring calcium oxide using the second rotor (205); S4, Stirring reaction: Carbon dioxide is introduced into the second silo (203) to react with calcium hydroxide solution to generate calcium carbonate; The calcination reaction mechanism (1) includes a calcination chamber (101). Arc-shaped rotating frames (102) are fixedly connected to both the front and rear sides of the inner cavity of the calcination chamber (101). A calcination ring cylinder (103) is rotatably connected to the inner side of the arc-shaped rotating frame (102). A feeding port (104) is opened at the top of the calcination ring cylinder (103). A sealing cap (106) is rotatably connected to the inner side of the feeding port (104) via a bearing component. A first spring (107) is fixedly connected to the top of the calcination ring cylinder (103) via a fixing plate. Several first springs (107) are provided. 7) One end is fixedly connected to the sealing cover (106). The left side of the calcining box (101) is fixedly connected to the first motor (110) by the bracket. The output shaft of the first motor (110) is fixedly connected to the first rotating rod (111) by the coupling. One end of the first rotating rod (111) passes through the calcining box (101) and is fixedly connected to one side of the calcining ring cylinder (103). A heater (112) is fixedly installed on the right side of the calcining box (101). One end of the heater (112) passes through the calcining box (101) and the calcining ring cylinder (103) in sequence and extends to the inside of the calcining ring cylinder (103). The front and rear parts of the inner cavity of the calcining ring cylinder (103) are provided with side slots (108), and the inner side of the side slots (108) is provided with a circular through hole (109) that extends to the outside of the calcining ring cylinder (103). The front and rear parts of the calcining box (101) are provided with guide holes (113) that cooperate with the circular through hole (109). The inner side of the guide hole (113) is slidably installed with a shaving rod (114) that cooperates with the circular through hole (109). The end of the shaving rod (114) away from the calcining box (101) is fixedly connected with a transverse pressure rod (115). The surfaces of the shaving rods (114) on both sides are fitted with second springs (116).

2. The method for producing and purifying calcium carbonate for desulfurization according to claim 1, characterized in that: The bottom of the calcining box (101) is provided with a lifting port (127). A guide frame (120) is slidably installed on the inner side of the lifting port (127). An arc-shaped bottom plate (117) is fixedly connected to the top of the guide frame (120), and the arc-shaped bottom plate (117) is in contact with the bottom of the calcining ring cylinder (103). A discharge port (118) is provided at the bottom of the arc-shaped bottom plate (117), and a support plate (119) is rotatably connected to the inner side of the discharge port (118) through a bearing. Side guide ports are provided at the front and rear of the guide frame (120) and inside the calcining box (101). 121), a round support rod (123) is slidably installed on the inner side of the side guide (121), and the round support rod (123) is in contact with the bottom of the material support plate (119). The front and rear parts of the left side of the calcining box (101) are slidably installed with horizontal tie rods (122) through openings, and the right end of the horizontal tie rod (122) extends to the inner side of the calcining box (101). The two horizontal tie rods (122) are fixedly connected to the limiting slide frame (132) on the opposite side and inside the calcining box (101). The front end and rear end of the round support rod (123) are slidably connected to the adjacent limiting slide frame (132).

3. The method for producing and purifying calcium carbonate for desulfurization according to claim 2, characterized in that: A vacuum pump (124) is fixedly connected to the bottom of the calcining box (101). A vacuum pipe (125) is fixedly connected to the air inlet of the vacuum pump (124), and one end of the vacuum pipe (125) passes through the calcining box (101) and extends into the interior of the calcining box (101). An exhaust pipe (126) is fixedly connected to the air outlet of the vacuum pump (124).

4. The method for producing and purifying calcium carbonate for desulfurization according to claim 3, characterized in that: A cylinder (128) is fixedly connected to the left side of the calcining box (101). An arc-shaped frame (129) is fixedly connected to the left end of the cylinder (128). An inclined vertical plate (130) is fixedly connected to the right end of the arc-shaped frame (129) through a bracket. The inclined vertical plate (130) is located on the right side of the calcining box (101). The left end of the horizontal tie rod (122) is fixedly connected to the arc-shaped frame (129). An inclined pressure plate (105) is fixedly connected to the front and rear sides of the bottom of the arc-shaped frame (129). A load-bearing support rod (131) is fixedly connected between the two inclined pressure plates (105). The load-bearing support rod (131) is in contact with the bottom of the guide frame (120).

5. The method for producing and purifying calcium carbonate for desulfurization according to claim 4, characterized in that: The purification reaction mechanism (2) includes a first silo (201) and a second silo (203), and both the first silo (201) and the second silo (203) are located at the lower part of the calcination box (101). The bottom end of the guide frame (120) passes through the first silo (201) and extends to the inside of the first silo (201). A material extraction box (202) is fixedly installed on the left side of the first silo (201) through an opening. A second motor (204) is fixedly connected to the bottom of the first silo (201) through a bracket. The output shaft of the second motor (204) is fixedly connected to a second rotating rod (205) through a coupling. The top end of the second rotating rod (205) passes through the first silo (201) and extends to the inside of the first silo (201). A stirring blade (206) is fixedly connected to the surface of the second rotating rod (205) and located inside the first silo (201).

6. The method for producing and purifying calcium carbonate for desulfurization according to claim 5, characterized in that: The top of the material extraction box (202) is rotatably connected to a third rotating rod (207) through an opening. The bottom end of the third rotating rod (207) passes through the material extraction box (202) and extends to the bottom of the material extraction box (202). A main air pipe (218) is fixedly connected to the surface of the third rotating rod (207) and located inside the material extraction box (202). A transfer horizontal pipe (220) connects the material extraction box (202) and the second material bin (203). A multi-faceted seat (208) is fixedly connected to one end of the third rotating rod (207) extending to the bottom of the material extraction box (202). A polygonal guide groove is formed on the surface of the second rotating rod (205). (219) A rebound rod (209) is fixedly connected to the front and rear sides of the bottom of the first hopper (201). A cross base plate (210) is slidably installed between the surfaces of the two rebound rods (209). A third spring (211) is sleeved on the surface of the rebound rod (209). The top two sides of the cross base plate (210) are rotatably connected to the first pulley (212) through openings. The two first pulleys (212) are slidably installed on the surfaces of the multifaceted seat (208) and the multi-angled guide groove (219), respectively. The two first pulleys (212) are connected by a first belt (213).

7. The method for producing and purifying calcium carbonate for desulfurization according to claim 6, characterized in that: The top of the second hopper (203) is rotatably connected to a main air pipe (218) through an opening. Both sides of the surface of the main air pipe (218) are fixedly connected to L-shaped exhaust pipes (216) through openings. The main air pipe (218) and the third rotating rod (207) are connected by a second belt (214) and a second pulley (221).

8. The method for producing and purifying calcium carbonate for desulfurization according to claim 7, characterized in that: A sealed bearing (215) is installed at the top of the main air pipe (218), and the bottom of the exhaust pipe (126) is connected to the sealed bearing (215). A solenoid valve (217) is fixedly installed at the bottom of the second hopper (203) by opening.

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