Industrial kiln with waste heat collection and heat compensation structure
By setting up a heat replenishment chamber and connection channel inside the industrial kiln, and using filter components to collect and reuse waste heat and exhaust gas in the flue gas, the problem of heat energy loss of the kiln is solved, and efficient energy utilization and reduced energy consumption of equipment are achieved.
Patent Information
- Application Number
- CN202421562661.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Existing industrial kilns have problems with thermal energy loss, including the loss of thermal energy through conduction and radiation, and the underutilization of the heat energy in the flue gas, resulting in energy waste.
An industrial kiln with a waste heat collection and replenishment structure is designed. By setting a heat replenishment chamber and a connecting channel inside the kiln body, the waste heat waste gas in the flue gas is collected and reused by filtering components to form a heat replenishment effect and reduce heat energy loss.
Effectively prevent the rapid loss of high-temperature heat in the kiln, reduce the energy consumption of equipment, avoid energy waste and pollution of the environment, and improve the insulation effect of the kiln.
Smart Images
Figure CN222837374U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of industrial kilns, and particularly relates to an industrial kiln with a waste heat collection and heat supplement structure. Background Art
[0002] Existing industrial kilns have some shortcomings in terms of heat loss. First, due to the problem of heat conduction in the shell and structure of the kiln, the heat energy will be lost through the wall. Secondly, the heat energy in the flue gas is not fully utilized during the emission process and is directly discharged into the atmosphere, resulting in energy waste. In addition, leakage and penetration during the operation of the kiln will also lead to heat loss. These shortcomings are mainly caused by factors such as the structure of the kiln, material selection and process parameters. If the shell and structure of the kiln are not well insulated, heat energy will be lost from the surface of the kiln through conduction. When the temperature inside the kiln is high, the heat energy will be lost outward by radiation. In addition, during the flue gas emission process, factors such as the height and shape of the kiln chimney and the temperature of the flue gas will also affect the degree of heat loss.
[0003] Conventional countermeasures mainly include: designing and improving the insulation layer of the kiln: using high-efficiency insulation materials, such as ceramic fiber, high-temperature bricks, etc., to reduce the conduction loss of heat energy. Improving the efficiency of the flue gas waste heat utilization of the kiln: recovering and reusing the heat energy in the flue gas through the flue gas waste heat recovery device, such as for heating fuel or waste heat feed, etc. Solving the leakage problem of the kiln: strengthening the sealing design of the kiln to reduce the heat loss caused by leakage and penetration. However, these conventional countermeasures also have some disadvantages. First, designing and improving the insulation layer of the kiln will increase the cost, and more investment is needed in the selection and construction of insulation materials. Secondly, the flue gas waste heat utilization device also requires additional equipment and energy consumption, which may increase production costs. Solving the kiln leakage problem may require frequent maintenance and overhaul of the kiln, which increases the workload and maintenance costs. Therefore, we hope to design an industrial kiln with a new structure to solve this problem. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an industrial kiln with a waste heat collection and heat supplement structure to solve the problems raised in the above-mentioned background technology.
[0005] The utility model is realized by the following technical scheme: an industrial kiln with a waste heat collection and heat supplement structure, comprising: a kiln body and a filter assembly, a filter assembly for waste heat collection and heat supplement is installed on the upper end of the kiln body, and the kiln body comprises a furnace body and an inner lining;
[0006] The furnace body is provided with an inner lining, and the lower end of the inner lining is penetrated from left to right to form a plurality of connecting channels;
[0007] The filter assembly includes a connecting pipe, a waste heat recovery pipe, a collection box and a filter box, and a plurality of filter boxes are installed inside the collection box;
[0008] A plurality of waste heat recovery pipes are installed on the upper side of the collecting box, a connecting pipe is arranged on the left side of the upper end of each waste heat recovery pipe, and a plurality of guide tubes are installed on the right side of the upper end of the collecting box.
[0009] As a preferred embodiment, a heat supplement chamber 1 is arranged between the left side of the lining and the left inner wall of the furnace body, and a heat supplement chamber 2 is arranged between the right side of the lining and the right inner wall of the furnace body. The arrangement of the heat supplement chamber 1 and the heat supplement chamber 2 can accommodate the filtered hot air and introduce the residual heat and exhaust gas between the lining and the furnace body, thereby forming a heat supplement effect.
[0010] As a preferred embodiment, a lower end of the supplementary heat chamber is connected to a lower end of a second supplementary heat chamber through a plurality of connecting channels, a plurality of fixing rods 1 are arranged between the left side of the lining and the left inner wall of the furnace body, and a plurality of fixing rods 2 are arranged between the right side of the lining and the right inner wall of the furnace body.
[0011] As a preferred embodiment, an upper end of the heat supplement chamber is connected to the lower ends of multiple connecting pipes, and the portion where the upper end of each connecting pipe is connected to the waste heat recovery pipe is inclined at an angle of 60 degrees.
[0012] As a preferred embodiment, the two upper ends of the heat supplement chambers are connected to the lower ends of multiple conduits, and a vertical pipe is respectively provided on the left and right sides of the upper end of the lining, and an inclined pipe is provided on the upper side of each of the vertical pipes. A discharge pipe is provided upward at the intersection of the upper ends of the two inclined pipes, and the discharge pipe extends to the bottom of the collecting box.
[0013] As a preferred embodiment, the filter box includes a box body, an inclined filter plate 1 and an inclined filter plate 2. A sleeve is arranged in the middle of the bottom of the box body, and the sleeve is connected to the upper end of the exhaust pipe. The arrangement of the filter assembly can prevent impurities carried in the exhaust gas from entering the first and second heat supply chambers.
[0014] As a preferred embodiment, a plurality of inclined filter plates 1 are obliquely arranged on the left inner wall of the box body, a plurality of inclined filter plates 2 are obliquely arranged on the right inner wall of the box body, the inclined filter plates 1 and 2 are cross-arranged at one end facing each other, and a filter net is arranged on the top of the box body.
[0015] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by setting the first supplementary heat chamber, the second supplementary heat chamber and the connecting channel inside the kiln body, the filtered waste heat exhaust gas enters the second supplementary heat chamber through the conduit. After there is enough waste heat exhaust gas inside the second supplementary heat chamber, the waste heat exhaust gas that enters subsequently causes the hot air inside the second supplementary heat chamber to gradually enter the connecting channel, and enter the first supplementary heat chamber from the connecting channel, thereby forming a hot air layer wrapped by the waste heat exhaust gas on the outside of the lining, which can continuously heat the outside of the lining and the furnace body to form a relatively stable insulation zone, effectively preventing the high-temperature heat inside the lining from being quickly dissipated to the outside, facilitating waste heat collection and heat supplement, and thus reducing the energy consumption of the equipment;
[0016] The filter assembly is set up, and the exhaust gas generated inside the lining enters the filter box through the vertical pipe, the inclined pipe and the exhaust pipe. After the exhaust gas passes through the filtering and interception of the multiple layers of inclined filter plate 1 and the inclined filter plate 2 inside the filter box, it finally enters the upper side of the collection box after fine filtration by the filter net. Part of the filtered exhaust gas enters the interior of the supplementary heat chamber 2 through the conduit to provide heat supplement for the furnace body and the lining, and the rest of the exhaust gas is directly transported to the outside heat exchanger for waste heat collection and utilization, avoiding energy waste and environmental pollution caused by direct discharge. At the same time, the filtered exhaust gas can avoid the problem of reduced heating effect caused by impurity adhesion after entering the supplementary heat chamber 1 and the supplementary heat chamber 2. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0018] Figure 1 The utility model is a schematic diagram of the overall structure of an industrial kiln with a waste heat collection and heat supplement structure.
[0019] Figure 2 It is a schematic diagram of the filter component structure of an industrial furnace with a waste heat collection and heat supplement structure according to the utility model.
[0020] Figure 3 It is a schematic diagram of the internal structure of a filter box of an industrial furnace with a waste heat collection and heat supplement structure according to the utility model.
[0021] In the figure, 100 is the furnace body, 110 is the furnace body, 120 is the lining, 121 is the connecting channel, 122 is the first supplementary heat chamber, 123 is the second supplementary heat chamber, 124 is the vertical pipe, 125 is the inclined pipe, and 126 is the discharge pipe;
[0022] 200 - filter assembly, 210 - connecting pipe, 220 - waste heat recovery pipe, 230 - collecting box, 240 - filter box, 241 - box body, 242 - inclined filter plate 1, 243 - filter screen, 244 - inclined filter plate 2, 245 - casing, 250 - conduit. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figures 1 to 3 The utility model provides a technical solution: an industrial kiln with a waste heat collection and heat supplement structure, comprising: a kiln body 100 and a filter assembly 200, a filter assembly 200 for waste heat collection and heat supplement is installed on the upper end of the kiln body 100, and the kiln body 100 comprises a furnace body 110 and an inner lining 120;
[0025] An inner lining 120 is provided inside the furnace body 110, and a plurality of connecting channels 121 are formed through the lower end of the inner lining 120 from left to right;
[0026] The filter assembly 200 includes a connecting pipe 210, a waste heat recovery pipe 220, a collection box 230 and a filter box 240, and a plurality of filter boxes 240 are installed inside the collection box 230;
[0027] A plurality of waste heat recovery pipes 220 are installed on the upper side of the collecting box 230 . A connecting pipe 210 is provided on the left side of the upper end of each waste heat recovery pipe 220 . A plurality of guide tubes 250 are installed on the right side of the upper end of the collecting box 230 .
[0028] See also Figure 1 A supplementary heat chamber 122 is provided between the left side of the lining 120 and the left inner wall of the furnace body 110, and a supplementary heat chamber 123 is provided between the right side of the lining 120 and the right inner wall of the furnace body 110. The setting of the supplementary heat chamber 122 and the supplementary heat chamber 123 can accommodate the filtered hot air and introduce the residual heat and exhaust gas into between the lining 120 and the furnace body 110, thereby forming a supplementary heat effect.
[0029] The lower end of the supplementary heat chamber 1 122 is connected to the lower end of the supplementary heat chamber 2 123 through multiple connecting channels 121, and multiple fixing rods 1 are arranged between the left side of the lining 120 and the left inner wall of the furnace body 110, and multiple fixing rods 2 are arranged between the right side of the lining 120 and the right inner wall of the furnace body 110.
[0030] The upper end of the heat supplement chamber 122 is connected to the lower ends of multiple connecting pipes 210, and the portion where the upper end of each connecting pipe 210 is connected to the waste heat recovery pipe 220 is inclined at an angle of 60 degrees.
[0031] The upper end of the second heat replenishment chamber 123 is connected to the lower ends of the multiple conduits 250. A vertical pipe 124 is respectively provided on the left and right sides of the upper end of the lining 120. An inclined pipe 125 is provided on the upper side of each vertical pipe 124. A discharge pipe 126 is provided upward at the intersection of the upper ends of the two inclined pipes 125. The discharge pipe 126 extends to the bottom of the collecting box 230.
[0032] As the first embodiment of the utility model, in actual use, the filtered waste heat exhaust gas enters into the interior of the second heat supplement chamber 123 through the conduit 250. After there is enough waste heat exhaust gas in the interior of the second heat supplement chamber 123, the waste heat exhaust gas that subsequently enters causes the hot air in the interior of the second heat supplement chamber 123 to gradually enter the connecting channel 121, and enter into the interior of the first heat supplement chamber 122 from the connecting channel 121, thereby forming a hot air layer wrapped by waste heat exhaust gas on the outside of the lining 120, which can continuously heat the outside of the lining 120 and the furnace body 110 to form a relatively stable insulation zone, effectively preventing the high-temperature heat inside the lining 120 from quickly dissipating to the outside, and facilitating waste heat collection and heat supplement, thereby reducing the energy consumption of the equipment.
[0033] See also Figures 1 to 3 The filter box 240 includes a box body 241, an inclined filter plate 1 242, and an inclined filter plate 244. A sleeve 245 is arranged in the middle of the bottom of the box body 241. The sleeve 245 is connected to the upper end of the exhaust pipe 126. The setting of the filter assembly 200 can prevent impurities carried in the exhaust gas from entering the interior of the heating chamber 1 122 and the heating chamber 2 123.
[0034] A plurality of inclined filter plates 1 242 are obliquely arranged on the left inner wall of the box body 241 , and a plurality of inclined filter plates 2 244 are obliquely arranged on the right inner wall of the box body 241 . The inclined filter plates 1 242 and 244 are cross-arranged at the ends facing each other, and a filter net 243 is arranged on the top of the box body 241 .
[0035] As the second embodiment of the utility model, based on the above-mentioned first embodiment, in actual use, the exhaust gas generated inside the lining 120 enters the filter box 240 through the vertical pipe 124, the inclined pipe 125 and the exhaust pipe 126. After the exhaust gas passes through the filtering and interception of the multiple layers of inclined filter plate 1 242 and the inclined filter plate 2 244 inside the filter box 240, it finally enters the upper side of the collecting box 230 after fine filtration by the filter net 243. Part of the filtered exhaust gas enters the interior of the supplementary heat chamber 2 123 through the conduit 250 to provide supplementary heat for the furnace body 110 and the lining 120. The remaining exhaust gas is directly transported to the outside heat exchanger for waste heat collection and utilization, avoiding energy waste and environmental pollution caused by direct discharge. At the same time, the filtered exhaust gas can avoid the problem of reduced heating effect caused by impurity adhesion after entering the supplementary heat chamber 1 122 and the supplementary heat chamber 2 123.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An industrial kiln with a waste heat collection and heat supplement structure, comprising: A kiln body (100) and a filter assembly (200), characterized in that a filter assembly (200) for collecting waste heat and supplementing heat is installed at the upper end of the kiln body (100), and the kiln body (100) comprises a furnace body (110) and an inner lining (120); An inner lining (120) is provided inside the furnace body (110), and a plurality of connecting channels (121) are formed through the lower end of the inner lining (120) from left to right; The filter assembly (200) comprises a connecting pipe (210), a waste heat recovery pipe (220), a collecting box (230) and a filter box (240), wherein a plurality of filter boxes (240) are installed inside the collecting box (230); A plurality of waste heat recovery pipes (220) are installed on the upper side of the collecting box (230), a connecting pipe (210) is provided on the left side of the upper end of each waste heat recovery pipe (220), and a plurality of guide tubes (250) are installed on the right side of the upper end of the collecting box (230).
2. The industrial kiln with a waste heat collection and heat supplement structure according to claim 1, characterized in that: A first heat supplementation chamber (122) is provided between the left side of the lining (120) and the left inner wall of the furnace body (110), and a second heat supplementation chamber (123) is provided between the right side of the lining (120) and the right inner wall of the furnace body (110).
3. An industrial kiln with a waste heat collection and heat supplement structure as claimed in claim 2, characterized in that: The lower end of the first supplementary heat chamber (122) is connected to the lower end of the second supplementary heat chamber (123) through a plurality of connecting channels (121); a plurality of first fixing rods are arranged between the left side of the lining (120) and the left inner wall of the furnace body (110); and a plurality of second fixing rods are arranged between the right side of the lining (120) and the right inner wall of the furnace body (110).
4. The industrial kiln with a waste heat collection and heat supplement structure as claimed in claim 3, characterized in that: The upper end of the heat supplement chamber 1 (122) is connected to the lower ends of a plurality of connecting pipes (210), and the portion where the upper end of each connecting pipe (210) is connected to the waste heat recovery pipe (220) is inclined at an angle of 60 degrees.
5. The industrial kiln with a waste heat collection and heat supplement structure as claimed in claim 4, characterized in that: The upper end of the second heat supplement chamber (123) is connected to the lower ends of the multiple conduits (250), and a vertical pipe (124) is respectively arranged on the left and right sides of the upper end of the liner (120), and an inclined pipe (125) is arranged on the upper side of each of the vertical pipes (124). A discharge pipe (126) is arranged upward at the intersection of the upper ends of the two inclined pipes (125), and the discharge pipe (126) extends to the bottom of the collection box (230).
6. The industrial kiln with a waste heat collection and heat supplement structure as claimed in claim 5, characterized in that: The filter box (240) comprises a box body (241), an inclined filter plate 1 (242), and an inclined filter plate 2 (244). A sleeve (245) is provided in the middle of the bottom of the box body (241), and the sleeve (245) is sleeved with the upper end of the discharge pipe (126).
7. An industrial kiln with a waste heat collection and heat supplement structure as claimed in claim 6, characterized in that: The left inner wall of the box body (241) is obliquely provided with a plurality of oblique filter plates 1 (242), and the right inner wall of the box body (241) is obliquely provided with a plurality of oblique filter plates 2 (244), the oblique filter plates 1 (242) and 2 (244) facing each other are cross-arranged at one end, and a filter net (243) is arranged on the top of the box body (241).