CN113200691A - Cement production process and energy-saving equipment thereof - Google Patents
Cement production process and energy-saving equipment thereof Download PDFInfo
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- CN113200691A CN113200691A CN202110524708.7A CN202110524708A CN113200691A CN 113200691 A CN113200691 A CN 113200691A CN 202110524708 A CN202110524708 A CN 202110524708A CN 113200691 A CN113200691 A CN 113200691A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/48—Clinker treatment
- C04B7/52—Grinding ; After-treatment of ground cement
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Abstract
The application relates to the technical field of cement production and discloses a cement production process and energy-saving equipment thereof, wherein the process comprises the steps of performing metal removal treatment on a cement raw material to reduce the influence of metal in the cement raw material on the cement quality; its energy-conserving equipment is including removing the metal device, and the breaker is to the broken back of accomplishing of cement raw materials, removes the metal device and rejects the metal in the cement raw materials, and then reaches the effect of rejecting the metal in the cement raw materials.
Description
Technical Field
The application relates to the field of cement production, in particular to a cement production process and energy-saving equipment thereof.
Background
The cement is a powdery hydraulic inorganic cementing material, is added with water and stirred into slurry, can be hardened in air or water, and can firmly solidify sand, stone and other materials together.
In the related art, for example, the chinese patent publication No. CN106082727A discloses a cement production process, which comprises the following steps: s1: crushing the raw materials for preparing the cement; s2: grinding auxiliary raw materials required by cement preparation; s3: homogenizing raw materials for preparing cement: s4: preheating and decomposing the homogenized raw materials; s5: calcining the preheated and decomposed raw materials in a rotary kiln to form cement clinker: s6: and grinding the calcined cement clinker. By adopting the process method, the production efficiency of the cement can be effectively improved, and the production quality of the cement can be improved.
In view of the above-mentioned related arts, the inventors believe that, since metals may exist in the cement raw materials, when the cement raw materials are homogenized, the metals are doped into the homogenized cement raw materials, and the doping of the metals into the cement raw materials affects the quality of cement, and further, the above-mentioned production process has a defect that the quality of the produced cement is poor.
Disclosure of Invention
In order to relieve the problem of poor quality of produced cement, the application provides a cement production process and energy-saving equipment thereof.
The cement production process provided by the application adopts the following technical scheme:
a cement production process comprises the following steps:
s1: crushing and removing metals, namely crushing the cement raw material, and removing metals from the crushed cement raw material;
s2: preparing raw materials, namely grinding the crushed cement raw materials to form cement raw materials;
s3: homogenizing the raw material, namely homogenizing the cement raw material;
s4: preheating and decomposing, namely preheating the homogenized cement raw material and decomposing carbonate at the same time;
s5: sintering cement clinker; calcining the preheated and decomposed cement raw materials to form cement clinker;
s6: and (3) grinding the cement, namely grinding the cement clinker to an appropriate particle size to form a certain particle size distribution.
By adopting the technical scheme, when cement is produced, massive cement raw materials are firstly crushed, then the crushed cement raw materials are subjected to metal removal treatment, then the cement raw materials are ground, the ground cement raw materials form cement raw materials and are subjected to homogenization treatment, then the homogenized cement raw materials are subjected to preheating treatment, carbonate in the cement raw materials is decomposed, the preheated cement raw materials enter a rotary kiln, the cement raw materials are calcined to form cement clinker, and finally the cement clinker is ground, so that finished cement is obtained.
Through removing metal treatment to it after the cement raw materials is broken, can reduce the metal in the cement raw materials and enter into the cement production line, reduce the damage that the metal in the cement raw materials caused production facility on the one hand, on the other hand reduces the influence that the existence of the metal in the cement raw materials produced the cement quality to the enterprise, and then reaches the effect that improves the cement quality.
Optionally, the step S1: also comprises the step of pre-homogenizing the cement raw material after metal removal.
By adopting the technical scheme, after the cement raw materials are subjected to metal removal, the cement raw materials are pre-homogenized, so that the quality fluctuation of the cement raw materials is reduced, and the production of high-quality cement clinker is facilitated.
Optionally, the step S6: and the grinding aid is added into the cement clinker when the cement clinker is ground.
By adopting the technical scheme, when the cement clinker is ground, the grinding aid is added into the cement clinker, so that the grinding efficiency can be improved on one hand, and the power consumption during grinding operation can be reduced on the other hand.
The application also provides a cement production energy-saving device which adopts the following technical scheme:
optionally, the system comprises a crusher, wherein the crusher crushes the cement raw material; the metal removing device is used for removing metals in the cement raw materials; a pulverizer, wherein the pulverizer grinds the cement raw material; a homogenizing kiln for homogenizing cement raw meal; a preheater for heating the homogenized cement raw meal; the decomposing furnace is used for decomposing the preheated cement raw meal; a rotary kiln for calcining the decomposed cement raw material and forming cement clinker; the ball mill is used for grinding cement clinker; the crusher and the metal removing device are arranged in sequence; the pulverizer, the homogenizing kiln, the preheater, the decomposing furnace, the rotary kiln and the ball mill are sequentially arranged.
By adopting the technical scheme, when cement is produced, the cement raw material is crushed by using the crusher, metal is removed from the crushed cement raw material by using the metal removing device, the influence of the metal in the cement raw material on the cement quality is reduced, then the cement raw material is ground by using the crusher to form cement raw material, the cement raw material enters the homogenizing kiln, the cement raw material is further homogenized by the homogenizing kiln and then enters the preheater, the cement raw material entering the preheater is preheated, the preheated cement raw material enters the decomposing furnace, then the decomposing furnace decomposes carbonate in the cement raw material, the cement raw material processed by the decomposing furnace enters the rotary kiln and is calcined in the rotary kiln, so that the cement raw material is calcined into cement clinker, then the cement clinker enters the ball mill, and the cement clinker entering the ball mill is ground by the ball mill, and then finished cement is obtained, and normal operation of cement production is ensured by arranging the equipment.
Optionally, the system further comprises a pre-homogenizing device, wherein the pre-homogenizing device is used for homogenizing the multiple cement raw materials.
Through adopting above-mentioned technical scheme, carry out broken back of accomplishing at the breaker to cement raw materials, use the homogenization device in advance to carry out the homogenization to broken good cement raw materials, carrying out the homogenization in-process to broken good cement raw materials, need not the staff and participate in it, and then reach the effect of practicing thrift the labour.
Optionally, the pre-homogenization device includes feeder hopper and homogenization pipe, the mouth of pipe of homogenization pipe one end is towards ground, the mouth of pipe of the homogenization pipe other end deviates from ground, the feeder hopper sets up the top at the homogenization pipe, the bottom of feeder hopper is inserted in the homogenization pipe, the feeder hopper sets up with homogenization pipe intercommunication.
Through adopting above-mentioned technical scheme, by broken good cement raw materials get into the feeder hopper in, cement raw materials move along the feeder hopper, make multiple cement raw materials all move towards the bottom of feeder hopper then to make multiple cement raw materials collect in the bottom of feeder hopper, during multiple cement raw materials that the collection is in the same place got into the homogenization pipe, and then make multiple cement raw materials fall down along the homogenization pipe, finally reach the effect of carrying out the homogenization to multiple cement raw materials.
Optionally, the feeder hopper is connected with the homogenization pipe is rotated, be provided with drive assembly on the homogenization pipe, drive assembly is used for driving the feeder hopper.
Through adopting above-mentioned technical scheme, when the homogenization device carries out the homogenization to multiple cement raw materials in advance, start drive assembly, drive assembly drives the feeder hopper, makes the feeder hopper rotate then, and relative rotation takes place for feeder hopper and homogenization pipe, and when the feeder hopper rotated, the cement raw materials in the feeder hopper received feeder hopper ascending power in week to make the cement raw materials in the feeder hopper along the circumferential motion of feeder hopper at the in-process of feeder hopper landing, and then increase the homogenization effect of cement raw materials.
Optionally, be provided with a plurality of pieces that block on the inner wall of feeder hopper, it is a plurality of block that the piece sets up along the circumference interval of feeder hopper, every block the piece all with feeder hopper fixed connection, every block the piece all with the central axis slope setting of feeder hopper.
Through adopting above-mentioned technical scheme, when the homogenization device carries out the homogenization to multiple cement raw materials in advance, the cement raw materials of every kind of difference gets into the feeder hopper from the different positions of feeder hopper, back in cement raw materials gets into the feeder hopper, the cement raw materials that gets into in the feeder hopper is blockked the piece drive, cement raw materials is along the circumferential motion of feeder hopper, then cement raw materials carries out the homogenization with different cement raw materials when following the feeder hopper motion, cement raw materials after the homogenization is along the feeder hopper landing under the effect of self gravity, increase the time of cement raw materials landing to homogenization pipe in this process, and then increase cement raw materials's homogenization effect.
Optionally, a homogenizing structure is arranged in the homogenizing pipe, and the homogenizing structure is used for further homogenizing the cement raw materials.
Through adopting above-mentioned technical scheme, back in the multiple cement raw materials got into the homogenization pipe, the homogenization structure in the homogenization pipe further carries out the homogenization to multiple cement raw materials, and then further increases the homogenization effect of multiple cement raw materials.
Optionally, the homogenizing structure comprises a first homogenizing roller and a second homogenizing roller, the first homogenizing roller and the second homogenizing roller are vertically arranged, the first homogenizing roller and the second homogenizing roller are rotatably connected with the homogenizing pipe, and the first homogenizing roller and the second homogenizing roller are vertically arranged in the length direction of the homogenizing pipe.
By adopting the technical scheme, when the pre-homogenizing device homogenizes a plurality of cement raw materials, the first homogenizing roller and the second homogenizing roller rotate relative to the homogenizing pipe, so that the cement raw materials entering the homogenizing pipe are blocked, meanwhile, the first homogenizing roller drives the cement raw materials, so that the cement raw materials move along the circumferential direction of the first homogenizing roller, when the cement raw materials move to the bottom of the first homogenizing roller, the cement raw materials are separated from the first homogenizing roller under the action of self gravity, the cement raw materials separated from the first homogenizing roller fall on the second homogenizing roller, the cement raw materials falling on the second homogenizing roller and the second homogenizing roller do circular motion, when the cement raw materials move to the bottom of the second homogenizing roller, the cement raw materials are separated from the second homogenizing roller under the action of self gravity, the motion time of the cement raw materials in the homogenizing pipe is increased in the process, and the movement path of the cement raw material in the homogenizing pipe is disturbed, so that the effect of homogenizing the cement raw material is further improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the step of removing metal is added in the cement production process, so that the influence of metal on the cement quality during cement production can be reduced, and the quality of cement produced in a factory is improved;
2. the cement raw materials after being crushed are pre-homogenized, so that the fluctuation of the quality of the cement raw materials can be reduced, and the production of high-quality cement clinker is facilitated;
3. by adding the grinding aid during grinding of the cement clinker, the grinding efficiency of the equipment on the cement clinker can be improved, and the power consumption during grinding operation is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a pretreatment apparatus in an embodiment of the present application;
FIG. 2 is a schematic view of the structure of a conveyor belt in the pretreatment apparatus according to the embodiment of the present application;
FIG. 3 is a schematic diagram of a pre-homogenizing device in a pre-treatment apparatus according to an embodiment of the present application;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic structural diagram of a production apparatus in an embodiment of the present application.
Description of reference numerals: 100. a crusher; 110. a conveyor belt; 111. sieving the grid; 112. a blocking lever; 113. a support bar; 200. a metal removing device; 210. a gantry; 220. an electromagnet; 300. a pre-homogenization device; 310. a feed hopper; 311. a blocking sheet; 320. a homogenizing tube; 321. a support frame; 400. a drive assembly; 410. a driving gear; 411. a rotating shaft; 412. a bevel gear; 420. a driven gear ring; 430. a first drive motor; 500. a homogenizing structure; 510. a first homogenizing roller; 511. a first homogenizing sheet; 512. a second drive motor; 520. a second homogenizing roller; 521. a second homogenizing plate; 600. a pulverizer; 610. a homogenizing kiln; 620. a preheater; 630. a decomposing furnace; 640. a rotary kiln; 650. a ball mill.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a cement production process.
A cement production process comprises the following steps: s1: carry out the breakage to cement raw materials and remove the metal, carry out the breakage to cement raw materials earlier, make the volume of cement raw materials reduce then, be convenient for on the one hand transport cement raw materials in the sequent step, on the other hand improves the grinding efficiency to cement raw materials. After the cement raw materials are crushed, the crushed cement raw materials are subjected to metal removal treatment, so that the existence of metal substances in the cement raw materials is reduced, and the influence of the existence of the metal substances in the cement raw materials on the quality of finished cement is reduced. Then, the various cement raw materials from which the metal substances are removed are pre-homogenized, the components of the cement raw materials are homogenized, the quality fluctuation of finished cement is reduced, and the production of cement clinker with higher quality is facilitated.
S2: and (3) raw material preparation, namely grinding the cement raw material subjected to metal removal to form the cement raw material after the cement raw material is ground, so that the effect of facilitating the subsequent steps is achieved.
S3: homogenizing raw materials, homogenizing the ground cement raw materials again, stirring by air, and generating a funnel effect by utilizing the gravity action of the cement raw materials, wherein the funnel effect is a phenomenon that when fluid moves from a place with a larger cross section of a pipeline to a place with a smaller cross section, the speed of the fluid is increased and the phenomenon is similar to that when water flows through a funnel. When the cement raw materials move downwards, a plurality of layers of material surfaces are cut, and the mixing uniformity of various cement raw materials is improved.
S4: preheating decomposition, preheating the homogenized cement raw material, and decomposing carbonate in the cement raw material after preheating treatment. The cement raw meal after homogenization is preheated first, so that the working efficiency of the cement raw meal during calcination can be improved.
S5: and (3) firing the cement clinker, wherein the preheated and decomposed cement raw meal enters equipment in the next process, and the cement raw meal is calcined to form the cement clinker.
S6: and (3) cement grinding, namely grinding the calcined clinker, and grinding the cement clinker to a proper granularity to form a certain grain composition. When the cement clinker is ground, the grinding aid is added into the cement clinker, so that the grinding efficiency can be improved, the power consumption of grinding operation is reduced, and the production cost of cement production enterprises is reduced.
When the grinding aid is sprayed on the cement clinker, a double-pipe spraying mode is adopted, wherein the double-pipe spraying mode comprises a large pipe and a small pipe, the large pipe and the small pipe are coaxially arranged, and a gap is reserved between the large pipe and the small pipe. The grinding aid is sprayed out of the small pipe, air is simultaneously provided for the large pipe, and then when the grinding aid is sprayed out of the small pipe, the air in the large pipe impacts the grinding aid, so that the grinding aid is sprayed more uniformly, the effect of saving the grinding aid is achieved on one hand, and the spraying effect of the grinding aid on the other hand is achieved.
The implementation principle of the cement production process in the embodiment of the application is as follows: when cement is produced, the cement raw materials are firstly crushed, then the crushed cement raw materials are subjected to metal removal, and the influence of metal on the quality of cement produced by enterprises is reduced. Then, various cement raw materials are homogenized, so that the fluctuation of the quality of cement is reduced, and the quality of cement clinker is improved. Then the cement raw material is ground, the ground cement raw material becomes cement raw material, and the cement raw material is homogenized again. Preheating and decomposing the cement raw material after the homogenization again, and decomposing carbonate in the cement raw material. And calcining the cement raw materials to form cement clinker. And finally, grinding the cement clinker, wherein when the cement clinker is ground, a grinding aid is added into the cement clinker, so that the grinding efficiency of the cement clinker is improved, and the cement clinker is ground to a proper particle size to form a certain particle size distribution.
The embodiment of the application also discloses a cement production energy-saving device.
The energy-saving equipment for cement production comprises pretreatment equipment and production equipment, wherein when cement is produced, the pretreatment equipment pretreats cement raw materials, and the production equipment deeply processes the cement raw materials.
Referring to fig. 1, the pretreatment apparatus includes a plurality of crushers 100 and a metal removing device 200, and one crusher 100 crushes one cement raw material. The bottom of each crusher 100 is provided with a conveyor belt 110, the conveyor belt 110 is horizontally arranged, and the cement raw materials crushed by the crushers 100 fall on the conveyor belt 110, so that the conveyor belt 110 transports the crushed cement raw materials. The metal removing devices 200 are arranged in a plurality, one metal removing device 200 is arranged corresponding to one conveyor belt 110, and when the conveyor belt 110 transports cement raw materials, the metal removing devices 200 remove metals in the cement raw materials.
Referring to fig. 2, each conveyor 110 is provided with a sieving grid 111, and the sieving grid 111 sieves the cement raw material conveyed by the conveyor 110. The sieving grille 111 comprises a plurality of blocking rods 112 and two supporting rods 113, the blocking rods 112 and the two supporting rods 113 are arranged in a coplanar manner, the plane where the blocking rods 112 and the two supporting rods 113 are located together is perpendicular to the top surface of the conveyor belt 110, and the plane where the blocking rods 112 and the two supporting rods 113 are located together is obliquely arranged with the direction of conveying cement raw materials by the conveyor belt 110.
The two support rods 113 are arranged in parallel at intervals, the plurality of blocking rods 112 are arranged between the two support rods 113, and the plurality of blocking rods 112 are sequentially arranged along the length direction of the support rods 113. One end of each blocking rod 112 is vertically and fixedly connected with one supporting rod 113, and the other end of each blocking rod 112 is vertically and fixedly connected with the other supporting rod 113. One support rod 113 is arranged on one side of the conveyor belt 110, the other support rod 113 is arranged on the other side of the conveyor belt 110, and each support rod 113 is vertically and fixedly connected with the edge beam of the conveyor belt 110. The blocking rod 112 of the plurality of blocking rods 112 that is closest to the top of the conveyor belt 110 is spaced from the top of the conveyor belt 110.
Cement raw materials on the conveyer belt 110 move to when sieving grid 111 the position, the great cement raw materials of volume block in to cement raw materials through sieve grid 111, because the direction of transfer slope of sieve grid 111 and conveyer belt 110 sets up, so the cement raw materials that are blockked down move along sieving grid 111 under the effect of the power of self receiving component, then make the great cement raw materials of volume move out conveyer belt 110 in one side of conveyer belt 110, the less cement raw materials of volume crosses sieve grid 111 through the clearance motion that blocks pole 112 and conveyer belt 110 top, thereby realize conveyer belt 110 and take place the rejection of the great cement raw materials of volume, and then reduce the great cement raw materials of volume and reduce the condition emergence of enterprise production efficiency.
The metal removing device 200 comprises a portal frame 210 and an electromagnet 220, wherein the electromagnet 220 is hung on the top of the portal frame 210, and the electromagnet 220 is connected with the top of the portal frame 210 in a sliding manner, and the sliding direction is perpendicular to the direction of conveying the cement raw materials by the conveyor belt 110. The plane of the gantry 210 is perpendicular to the conveyor belt 110, one side of the gantry 210 is arranged at one side of the conveyor belt 110, and the other side of the gantry 210 is arranged at the other side of the conveyor belt 110. The bottoms of both sides of the gantry 210 are inserted into the ground and the gantry 210 is fixed, and the bottom of the electromagnet 220 has a gap with the top of the conveyor belt 110.
When conveyer belt 110 conveyed cement raw materials, for electro-magnet 220 circular telegram, cement raw materials passed through the clearance between the bottom of electro-magnet 220 and conveyer belt 110, and the iron substance in the cement raw materials is attracted by electro-magnet 220, makes then the iron substance in the cement raw materials adsorbed on electro-magnet 220 to realize the screening of iron metal in the cement raw materials. When the amount of the iron substances adsorbed on the electromagnet 220 is large, the electromagnet 220 is pushed, the electromagnet 220 and the portal frame 210 slide relatively, the electromagnet 220 moves to one side of the conveyor belt 110, then the electromagnet 220 is powered off, and the iron substances adsorbed on the electromagnet 220 fall on the ground.
Referring to fig. 1 and 3, the pre-treatment apparatus further comprises a pre-homogenizing device 300, the pre-homogenizing device 300 comprising a feed hopper 310 and a homogenizing pipe 320. The homogenizing pipe 320 is vertically arranged, a support frame 321 is arranged at the bottom of the homogenizing pipe 320, the support frame 321 is fixedly connected with the homogenizing pipe 320, the support frame 321 enables a gap to be reserved between a bottom pipe orifice of the homogenizing pipe 320 and the ground, and the gap between the bottom pipe orifice of the homogenizing pipe 320 and the ground is used for allowing cement raw materials in the homogenizing pipe 320 to fall onto the ground. The central axis of the feeding hopper 310 and the central axis of the homogenizing pipe 320 are arranged collinearly, the feeding hopper 310 being arranged on top of the homogenizing pipe 320. One end of the bottom of the feed hopper 310 is inserted into the homogenizing pipe 320, and the feed hopper 310 is disposed to communicate with the homogenizing pipe 320. The conveying ends of the plurality of conveyor belts 110 are located at the top of the feed hopper 310, and the plurality of conveyor belts 110 are sequentially spaced along the circumference of the feed hopper 310.
When the cement raw materials move to the end of the conveyor belt 110 under the conveying action of the conveyor belt 110, the cement raw materials enter the feed hopper 310, the cement raw materials entering the feed hopper 310 move along the inner wall of the feed hopper 310 under the action of self gravity, and then the multiple cement raw materials are converged at the bottom of the feed hopper 310, so that the multiple cement raw materials simultaneously enter the homogenizing pipe 320, and the cement raw materials entering the homogenizing pipe 320 are mixed together in the falling process.
The feeding hopper 310 is rotatably connected to the homogenizing pipe 320, and the rotational axis 411 of the feeding hopper 310 is arranged in line with the central axis of the feeding hopper 310. A plurality of blocking pieces 311 are arranged in the feed hopper 310, and the blocking pieces 311 are sequentially arranged at intervals along the circumferential direction of the feed hopper 310. Every blocks piece 311 and all is the contained angle setting with the central axis of feeder hopper 310, and every blocks piece 311 all with the inner wall fixed connection of feeder hopper 310.
When multiple cement raw materials get into during feeder hopper 310 from the different positions of feeder hopper 310, feeder hopper 310 rotates, and feeder hopper 310 drives cement raw materials and rotates under the effect that blocks piece 311, and then multiple cement raw materials homogenization is in the same place, and multiple cement raw materials that the homogenization is in the same place slide along the incline direction of blocking piece 311 under the effect of self gravity component to make multiple cement raw materials that the homogenization is in the same place get into homogenization pipe 320.
Referring to fig. 3 and 4, a driving assembly 400 is provided on the homogenizing pipe 320, and the driving assembly 400 drives the feed hopper 310 when the pre-homogenizing apparatus 300 homogenizes a plurality of cement raw materials. The driving assembly 400 includes a driving gear 410, a driven ring gear 420 and a first driving motor 430, wherein the driving gear 410 and the driven ring gear 420 are in mesh transmission connection. The first driving motor 430 is in transmission connection with the driving gear 410. The driven gear ring 420 is coaxially disposed with the feed hopper 310, an inner ring of the driven gear ring 420 is fixedly connected with the circumferential side surface of the feed hopper 310, and the driving gear 410 is rotatably connected inside the homogenizing pipe 320. The driving gear 410 is coaxially and fixedly connected with a rotating shaft 411, the first driving motor 430 is fixedly connected to the outside of the homogenizing pipe 320, and an output shaft of the first driving motor 430 penetrates into the homogenizing pipe 320. An output shaft of the first driving motor 430 is perpendicular to the rotating shaft 411, the rotating shaft 411 and the output shaft of the first driving motor 430 are both fixedly connected with a bevel gear 412, and the bevel gear 412 on the rotating shaft 411 is in meshing transmission connection with the bevel gear 412 on the output shaft of the first driving motor 430.
When driving feeder hopper 310, start first driving motor 430, first driving motor 430 drives axis of rotation 411, and axis of rotation 411 drives driving gear 410 and rotates, and driving gear 410 takes place relative rotation with homogenization pipe 320, and driving gear 410 drives driven ring gear 420, and driven ring gear 420 drives feeder hopper 310 and rotates, and feeder hopper 310 takes place relative rotation with homogenization pipe 320, and then increases the homogenization effect of multiple cement raw materials.
The homogenizing pipe 320 is also provided therein with a homogenizing structure 500, the homogenizing structure 500 includes a first homogenizing roller 510 and a second homogenizing roller 520, the first homogenizing roller 510 and the second homogenizing roller 520 are vertically disposed, and both the first homogenizing roller 510 and the second homogenizing roller 520 are vertically disposed in a length direction of the homogenizing pipe 320. The first and second homogenizing rollers 510 and 520 are rotatably connected to the inside of the homogenizing pipe 320. The first homogenizing roller 510 is provided with a plurality of first homogenizing plates 511, the plurality of first homogenizing plates 511 are sequentially arranged at intervals along the circumferential direction of the first homogenizing roller 510, and the plurality of first homogenizing plates 511 are fixedly connected with the first homogenizing roller 510. The second homogenizing roller 520 is provided with a plurality of second homogenizing plates 521, the plurality of second homogenizing plates 521 are sequentially arranged at intervals along the circumferential direction of the second homogenizing roller 520, and the plurality of second homogenizing plates 521 are fixedly connected with the second homogenizing roller 520.
Two second driving motors 512 are arranged outside the homogenizing pipe 320, one second driving motor 512 is arranged corresponding to the first homogenizing roller 510, and an output shaft of the second driving motor 512 penetrates into the homogenizing pipe 320 and is coaxially and fixedly connected with the first homogenizing roller 510; another second driving motor 512 is disposed corresponding to the second homogenizing roller 520, and an output shaft of the second driving motor 512 penetrates into the homogenizing pipe 320 and is coaxially and fixedly connected with the second homogenizing roller 520.
When the cement raw material enters the homogenizing pipe 320, two second driving motors 512 are started, the two second driving motors 512 respectively drive the corresponding first homogenizing roller 510 or the second homogenizing roller 520, the first homogenizing roller 510 drives the first homogenizing plate 511 to rotate, and the second homogenizing roller 520 drives the second homogenizing plate 521 to rotate. Then, when the first homogenizing plate 511 rotates, the cement raw material is stirred, the cement raw material rotates along with the first homogenizing plate 511, and when the cement raw material moves to the bottom of the first homogenizing roller 510 along with the first homogenizing plate 511, the cement raw material is separated from the first homogenizing plate 511 under the action of self gravity. Therefore, the cement raw materials fall on the second homogenizing plate 521, the second homogenizing plate 521 stirs the cement raw materials, and when the cement raw materials move to the bottom of the second homogenizing roller 520 along with the second homogenizing plate 521, the cement raw materials are separated from the second homogenizing plate 521 under the action of self gravity, so that the homogenizing effect of further increasing various cement raw materials is achieved.
Referring to fig. 5, the manufacturing apparatus further includes a pulverizer 600, a homogenizing kiln 610, a preheater 620, a decomposing furnace 630, a rotary kiln 640, and a ball mill 650, and the pulverizer 600, the homogenizing kiln 610, the preheater 620, the decomposing furnace 630, the rotary kiln 640, and the ball mill 650 are sequentially disposed. When the energy-saving equipment for cement production works, the pre-homogenized cement raw materials enter the crusher 600, the crusher 600 crushes the cement raw materials to form cement raw materials, and the cement raw materials enter the homogenizing kiln 610 for re-homogenization. The cement raw meal, which is homogenized again, enters the preheater 620, the preheater 620 preheats the cement raw meal, the preheated cement raw meal enters the decomposing furnace 630, and carbonate in the cement raw meal is decomposed. The decomposed cement raw meal enters the rotary kiln 640 for calcination, so that the cement raw meal is formed into cement clinker, and the carbonate is further decomposed while the cement raw meal is calcined. Finally, the cement clinker enters a ball mill 650, and the ball mill 650 grinds the cement clinker and forms cement with proper granularity.
The implementation principle of the energy-saving equipment for cement production in the embodiment of the application is as follows: when cement is produced, a cement raw material is crushed by the crusher 100, and the crushed cement raw material falls on the conveyor 110, and the conveyor 110 conveys the cement raw material. When the cement raw material moves to the position of the sieving grid 111, the cement raw material with larger volume is blocked, and then the cement raw material moves along the inclined direction of the sieving grid 111, and the cement raw material with larger volume moves out of the conveyer belt 110 from one side of the conveyer belt 110.
The cement raw material is transferred to the top of the hopper 310 and falls into the hopper 310. The first driving motor 430 is started, the first driving motor 430 drives the feeding hopper 310, the feeding hopper 310 and the homogenizing pipe 320 rotate relatively, and the feeding hopper 310 drives the blocking piece 311 on the feeding hopper 310 to move. Block that piece 311 drives cement raw materials and rotate, make multiple cement raw materials homogenization together then, multiple cement raw materials moves along feeder hopper 310 under the effect of self gravity, and multiple cement raw materials collects in the bottom of feeder hopper 310.
The cement raw materials in the feed hopper 310 move into the homogenizing pipe 320, the second driving motor 512 is started, the second driving motor 512 drives the first homogenizing roller 510 and the second homogenizing roller 520, the first homogenizing roller 510 and the second homogenizing roller 520 rotate relative to the homogenizing pipe 320, and the first homogenizing plate 511 and the second homogenizing plate 521 stir the cement raw materials, so that the homogenizing effect of various cement raw materials is improved.
The pre-homogenized cement raw material is crushed in the crusher 600, and the crushed cement raw material is formed into cement raw material and is fed into the homogenizing kiln 610 for re-homogenization. The homogenized raw cement material is preheated in the preheater 620, the preheated raw cement material is introduced into the decomposing furnace 630, and the decomposing furnace 630 decomposes carbonate in the raw cement material. The decomposed cement raw materials enter a rotary kiln 640 for calcination to form cement clinker, and the cement clinker enters a ball mill 650 for grinding to complete the production of cement.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A cement production process is characterized in that: the method comprises the following steps:
s1: crushing and removing metals, namely crushing the cement raw material, and removing metals from the crushed cement raw material;
s2: preparing raw materials, namely grinding the crushed cement raw materials to form cement raw materials;
s3: homogenizing the raw material, namely homogenizing the cement raw material;
s4: preheating and decomposing, namely preheating the homogenized cement raw material and decomposing carbonate at the same time;
s5: sintering cement clinker; calcining the preheated and decomposed cement raw materials to form cement clinker;
s6: and (3) grinding the cement, namely grinding the cement clinker to an appropriate particle size to form a certain particle size distribution.
2. A cement manufacturing process according to claim 1, characterized in that: the S1: also comprises the step of pre-homogenizing the cement raw material after metal removal.
3. A cement manufacturing process according to claim 1, characterized in that: the S6: and the grinding aid is added into the cement clinker when the cement clinker is ground.
4. The energy-saving equipment for cement production is characterized in that: the cement raw material crushing device comprises a crusher (100), wherein the crusher (100) crushes cement raw materials; the metal removing device (200) is used for removing metals in the cement raw materials (200); a pulverizer (600), wherein the pulverizer (600) pulverizes the cement raw material; a homogenizing kiln (610), said homogenizing kiln (610) for homogenizing cement raw meal; a preheater (620), said preheater (620) being adapted to heat the homogenized cement raw meal; a decomposing furnace (630), the decomposing furnace (630) being used for decomposing preheated cement raw meal; a rotary kiln (640), said rotary kiln (640) being adapted to calcine decomposed cement raw meal and form cement clinker; a ball mill (650), the ball mill (650) being used for grinding cement clinker; the crusher (100) and the metal removing device (200) are arranged in sequence; the pulverizer (600), the homogenizing kiln (610), the preheater (620), the decomposing furnace (630), the rotary kiln (640) and the ball mill (650) are arranged in sequence.
5. The cement production energy-saving device according to claim 4, characterized in that: also included is a pre-homogenization device (300), the pre-homogenization device (300) being for homogenizing the cement raw material.
6. The cement production energy-saving device according to claim 5, characterized in that: the pre-homogenizing device (300) comprises a feed hopper (310) and a homogenizing pipe (320), wherein the pipe orifice of one end of the homogenizing pipe (320) faces the ground, the pipe orifice of the other end of the homogenizing pipe (320) faces away from the ground, the feed hopper (310) is arranged at the top of the homogenizing pipe (320), the bottom of the feed hopper (310) is inserted into the homogenizing pipe (320), and the feed hopper (310) is communicated with the homogenizing pipe (320).
7. The cement production energy-saving device according to claim 6, characterized in that: the feed hopper (310) is rotationally connected with the homogenizing pipe (320), a driving component (400) is arranged on the homogenizing pipe (320), and the driving component (400) is used for driving the feed hopper (310).
8. The cement production energy-saving device according to claim 7, characterized in that: be provided with a plurality of piece (311) that block on the inner wall of feeder hopper (310), it is a plurality of block that piece (311) set up along the circumference interval of feeder hopper (310), every block that piece (311) all with feeder hopper (310) fixed connection, every block that piece (311) all set up with the central axis slope of feeder hopper (310).
9. The cement production energy-saving device according to claim 6, characterized in that: a homogenizing structure (500) is arranged in the homogenizing pipe (320), and the homogenizing structure (500) is used for further homogenizing the cement raw materials.
10. The cement production energy-saving device according to claim 9, characterized in that: the homogenizing structure (500) comprises a first homogenizing roller (510) and a second homogenizing roller (520), wherein the first homogenizing roller (510) and the second homogenizing roller (520) are vertically arranged, the first homogenizing roller (510) and the second homogenizing roller (520) are rotatably connected with the homogenizing pipe (320), and the first homogenizing roller (510) and the second homogenizing roller (520) are vertically arranged in the length direction of the homogenizing pipe (320).
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| CN202110524708.7A CN113200691A (en) | 2021-05-14 | 2021-05-14 | Cement production process and energy-saving equipment thereof |
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| CN202110524708.7A CN113200691A (en) | 2021-05-14 | 2021-05-14 | Cement production process and energy-saving equipment thereof |
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Cited By (1)
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| CN115921012A (en) * | 2022-11-01 | 2023-04-07 | 山东山铝环境新材料有限公司 | Automatic cement production management system |
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