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CN-224215824-U - High-efficient heating furnace for limestone calcination

CN224215824UCN 224215824 UCN224215824 UCN 224215824UCN-224215824-U

Abstract

The utility model discloses a high-efficiency heating furnace for limestone calcination, which comprises a preheating box and a calciner, wherein a spiral elevator is fixedly connected between the preheating box and the calciner, a filtering structure is embedded and connected between the preheating box and the calciner and positioned in front of the spiral elevator, a crushing structure is embedded and installed on the front surface of the preheating box, the crushing structure comprises two groups of crushing rollers, a connecting shaft and a servo motor, the connecting shafts are fixedly installed on the front surface and the rear surface of the crushing rollers, the preheating box comprises a feed hopper, a first smoke outlet, a box body, a first fuel inlet, a stirring motor and a spiral stirring paddle, the upper surface of the box body is embedded and installed with the feed hopper, and the lower surface of the box body is embedded and installed with the stirring motor. The high-efficiency heating furnace for calcining the limestone can effectively improve heating efficiency, fully utilize heat generated during calcining and is beneficial to saving resources.

Inventors

  • WANG NAN
  • BAO HAIBIN
  • QIAN PEIFENG
  • BAO XINGXING
  • Bao Luobin
  • LU YI
  • ZHAO GUOLIN

Assignees

  • 浙江振鑫新材料科技有限公司

Dates

Publication Date
20260508
Application Date
20250509

Claims (7)

  1. 1. The efficient heating furnace for limestone calcination is characterized by comprising a preheating box (2) and a calciner (5), wherein a spiral lifting machine (4) is fixedly connected between the preheating box (2) and the calciner (5), a filtering structure (3) is embedded and connected between the preheating box (2) and the calciner (5) and positioned in front of the spiral lifting machine (4), and a crushing structure (1) is embedded and arranged on the front surface of the preheating box (2).
  2. 2. The efficient heating furnace for limestone calcination according to claim 1, wherein the crushing structure (1) comprises two groups of crushing rollers (101), connecting shafts (102) and servo motors (103), and the connecting shafts (102) are fixedly arranged on the front surface and the rear surface of the crushing rollers (101).
  3. 3. The efficient heating furnace for limestone calcination, as claimed in claim 2, wherein the preheating tank (2) comprises a feed hopper (201), a first smoke outlet (202), a tank body (203), a first fuel inlet (204), a stirring motor (205) and a screw propeller (206), the feed hopper (201) is embedded and installed on the upper surface of the tank body (203), the stirring motor (205) is embedded and installed on the lower surface of the tank body (203), the screw propeller (206) is embedded and installed in the tank body (203) on the upper surface of the stirring motor (205), the first smoke outlet (202) is embedded and installed on the upper side of one side surface of the tank body (203), and the first fuel inlet (204) is embedded and installed on the lower side of the first smoke outlet (202) on one side surface of the tank body (203).
  4. 4. The efficient heating furnace for limestone calcination as claimed in claim 3, wherein the servo motor (103) is embedded and installed on the front surface of the box body (203) at an upper position, and the crushing rollers (101) are embedded and installed inside the box body (203).
  5. 5. The efficient heating furnace for limestone calcination, as claimed in claim 4, wherein the filtering structure (3) comprises a door plate (301), an adsorption layer (302), a first conveying pipe (303), a first filter screen (304), a second filter screen (305), a second conveying pipe (306), a filter box (307), a sliding chute (308) and a sliding block (309), the door plate (301) is hinged to the front surface of the filter box (307), the first conveying pipe (303) is embedded and installed on one side surface of the filter box (307), the second conveying pipe (306) is embedded and installed on the other side surface of the filter box (307), sliding chutes (308) are formed in the upper surface and the lower surface of the filter box (307), six groups of sliding chutes (308) are formed in the inner portion of the adsorption layer (302), the upper surface and the lower surface of the first filter screen (304) and the second filter screen (305), and sliding blocks (309) are fixedly installed on the upper surface and the lower surface of the filter screen (305), and sliding blocks (309) are embedded and installed in the inner portion of the sliding chute (308) respectively.
  6. 6. The efficient heating furnace for limestone calcination according to claim 5, wherein the calciner (5) comprises a second smoke outlet (501), a furnace body (502), a second fuel inlet (503) and a discharge outlet (504), wherein the discharge outlet (504) is embedded and arranged on one side surface of the furnace body (502) below, the second smoke outlet (501) is embedded and arranged on the other side surface of the furnace body (502) above, and the second fuel inlet (503) is embedded and arranged on one side surface of the furnace body (502) below the second smoke outlet (501).
  7. 7. The efficient heating furnace for calcining limestone, as claimed in claim 6, wherein the spiral lifting machine (4) is embedded and installed between the box body (203) and the furnace body (502), one side surface of the first conveying pipe (303) is embedded and installed on the box body (203) and located in front of the spiral lifting machine (4), and one side surface of the adsorption layer (302) is embedded and installed on the furnace body (502) and located in front of the spiral lifting machine (4).

Description

High-efficient heating furnace for limestone calcination Technical Field The utility model relates to the technical field of limestone calcination, in particular to a high-efficiency heating furnace for limestone calcination. Background ‌ Limestone calciner ‌ is an industrial device for high-temperature calcination of limestone, and mainly aims to decompose limestone (the main component is calcium carbonate) into calcium oxide (quicklime) and carbon dioxide, the limestone calciner is widely applied in industry and is mainly used for producing lime and further used for manufacturing industrial products such as cement, glass and the like, the limestone calcination is a series of physical change and chemical change reaction processes, the limestone calcination is mainly completed in a heating furnace, and the limestone in the furnace is heated and calcined by high-temperature heating; When the limestone is preheated, the volume of the limestone is different, so that the limestone is not preheated uniformly, the subsequent heating effect is reduced, the calcining efficiency is poor, the heat generated during calcining is not fully utilized, and the direct discharge causes the waste of resources. Disclosure of utility model The utility model mainly aims to provide a high-efficiency heating furnace for limestone calcination, which can effectively solve the problems in the background technology. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The utility model provides a high-efficient heating furnace that lime stone calcined, includes preheating bin and calciner, fixedly connected with spiral elevator between preheating bin and the calciner, it is connected with filtration to inlay in the place ahead of spiral elevator to lie in between preheating bin and the calciner, the front surface of preheating bin inlays and establishes installs broken structure. Preferably, the crushing structure comprises two groups of crushing rollers, connecting shafts and servo motors, wherein the connecting shafts are fixedly arranged on the front surface and the rear surface of each crushing roller. Preferably, the preheating tank comprises a feed hopper, a first smoke outlet, a tank body, a first fuel inlet, a stirring motor and a screw propeller, wherein the feed hopper is embedded and installed on the upper surface of the tank body, the stirring motor is embedded and installed on the lower surface of the tank body, the screw propeller is embedded and installed on the upper surface of the stirring motor, the first smoke outlet is embedded and installed on one side surface of the tank body above, and the first fuel inlet is embedded and installed below the first smoke outlet on one side surface of the tank body. Preferably, the servo motor is embedded and arranged at the position above the front surface of the box body, and the crushing rollers are embedded and arranged in the box body. Preferably, the filter structure comprises a door plate, an adsorption layer, a first conveying pipe, a first filter screen, a second conveying pipe, a filter tank, a sliding groove and a sliding block, wherein the door plate is hinged to the front surface of the filter tank, the first conveying pipe is embedded and installed on one side surface of the filter tank, the second conveying pipe is embedded and installed on the other side surface of the filter tank, the sliding groove is formed in the position, located on the upper surface, of the filter tank, and the sliding groove is formed in the lower surface of the filter tank, six groups of sliding grooves are formed in total, and the sliding blocks are fixedly installed on the upper surface and the lower surface of the adsorption layer, the first filter screen and the second filter screen and respectively embedded and installed in the sliding groove. Preferably, the calciner comprises a second smoke outlet, a furnace body, a second fuel inlet and a discharge outlet, wherein the discharge outlet is embedded and arranged below one side surface of the furnace body, the second smoke outlet is embedded and arranged above the other side surface of the furnace body, and the second fuel inlet is embedded and arranged below the second smoke outlet. Preferably, the spiral elevator is embedded and arranged between the box body and the furnace body, one side surface of the first conveying pipe is embedded and arranged in the box body and positioned in front of the spiral elevator, and one side surface of the adsorption layer is embedded and arranged in front of the spiral elevator. Compared with the prior art, the utility model has the following beneficial effects: 1, through the crushing structure, the limestone entering the interior of the preheating box can be crushed, so that the uniformity of preheating the limestone is improved; 2, through the filter structure, the hot gas in the calciner can be input into the preheating box, so that the limestone