CN-224230739-U - Furnace body waste heat circulation mechanism of heating furnace

CN224230739UCN 224230739 UCN224230739 UCN 224230739UCN-224230739-U

Abstract

The utility model relates to a furnace body waste heat circulation mechanism of a heating furnace, which comprises a furnace body outer box, a heat insulation inner box arranged in the furnace body outer box, and an air outlet pipe inserted at the top of the furnace body outer box, wherein the upper, lower, left and right outer walls of the heat insulation inner box are respectively spaced with the upper, lower, left and right inner walls of the furnace body outer box by a certain distance, so that a rectangular ring heat conducting cavity is formed between the upper, lower, left and right outer walls of the heat insulation inner box and the upper, lower, left and right inner walls of the furnace body outer box, the root opening of the air outlet pipe is communicated with the inside of the rectangular ring heat conducting cavity, and a plurality of air inlet holes are formed at the top of the furnace body outer box.

Inventors

WANG YICUN
LU JINQI
WANG WEITING

Assignees

台州天巧自动化科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250509

Claims (7)

1. The furnace body waste heat circulation mechanism of the heating furnace is characterized by comprising a furnace body outer box, a heat insulation inner box arranged in the furnace body outer box and an air outlet pipe inserted at the top of the furnace body outer box; the upper, lower, left and right outer walls of the heat-insulating inner box are respectively spaced from the upper, lower, left and right inner walls of the furnace outer box by a certain distance, so that a rectangular ring heat conducting cavity is formed between the upper, lower, left and right outer walls of the heat-insulating inner box and the upper, lower, left and right inner walls of the furnace outer box, and the root opening of the air outlet pipe is communicated with the inside of the rectangular ring heat conducting cavity; a plurality of air inlet holes are formed in the top of the furnace body outer box.
2. The furnace body waste heat recycling mechanism of a heating furnace according to claim 1, wherein the heat insulation inner box comprises a top plate and two coamings which are fixed on the left side and the right side of the top plate and are symmetrically arranged respectively, a bottom plate which is transversely arranged is formed on the lower side edges of the two coamings, and the end edges of the two bottom plates are mutually fixed.
3. The furnace body waste heat recycling mechanism of a heating furnace according to claim 2, wherein a plurality of first heat conducting holes are formed in the top plate, and a plurality of second heat conducting holes are formed in each bottom plate.
4. The furnace body waste heat circulation mechanism of a heating furnace according to claim 1, further comprising a heat preservation cabin arranged in the heat insulation inner box, wherein the heat preservation cabin comprises two side plates which are vertically arranged and respectively symmetrically and parallelly distributed left and right, and two cover plates which are transversely arranged between the two side plates and respectively symmetrically and parallelly distributed up and down, and a rectangular cylindrical heat preservation cavity is formed between the two side plates and the two cover plates.
5. The furnace body waste heat recycling mechanism of a heating furnace according to claim 1, wherein a plurality of partition plates which are vertically arranged and are sequentially arranged from front to back and are positioned below the heat insulation inner box are further fixed on the bottom inner wall of the furnace body outer box, and the upper side edge of each partition plate is fixed between the bottom outer walls of the two bottom plates so that the bottom outer wall of the heat insulation inner box is separated from the bottom inner wall of the furnace body outer box by a certain distance.
6. The mechanism of claim 5, wherein a plurality of ventilation slots are formed in the upper and lower edges of each of the partition plates at the leftmost side, the ventilation slots being distributed in sequence from left to right.
7. The furnace body waste heat circulation mechanism of a heating furnace according to claim 1, wherein a plurality of air inlet fans which are sequentially distributed from front to back are further embedded at the bottom of the furnace body outer box, and air outlets of each air inlet fan are upward and are mutually communicated with the inside of the rectangular ring heat conducting cavity.

Description

Furnace body waste heat circulation mechanism of heating furnace Technical Field The application relates to the technical field of metal material heating equipment, in particular to a furnace body waste heat circulation mechanism of a heating furnace. Background The heating furnace is widely applied to industries such as metallurgy, chemical industry, petroleum, mechanical manufacturing and the like, and has the function of generating a high-temperature heat source through fuel combustion so as to heat materials (usually metals), and the continuous heating furnace is a relatively common metal material heating furnace. The heat preservation boxes are arranged outside the hearth of the existing continuous heating furnace to reduce the heat loss outwards of the hearth, but the heat loss outwards from the hearth can heat the heat preservation boxes to be more than 200 ℃ due to the fact that the temperature in the hearth is too high (generally more than 1000 ℃), the heat on the heat preservation boxes is transferred to the outer boxes of the furnace body, the temperature of the outer boxes of the furnace body is close to 100 ℃, operators can be scalded by the outer walls of the outer boxes of the furnace body carelessly, serious potential safety hazards exist, and in addition, the heat loss outwards from the hearth finally flows outwards directly, not only is the waste of energy sources caused, but also the environmental temperature can be greatly increased to influence the working comfort of the operators, and the operation comfort of the operators needs to be further improved. Disclosure of utility model Aiming at the current state of the prior art, the utility model aims to provide the furnace body waste heat circulating mechanism of the heating furnace, which effectively utilizes the heat radiated to the outer box of the furnace body from the hearth outwards, further improves the temperature of the air inlet flow of the high-temperature fan to save fuel consumption, thereby effectively preventing the waste of energy sources, avoiding the great rise of the environmental temperature to ensure the working comfort of operators, and obviously reducing the temperature of the outer box of the furnace body to eliminate potential safety hazards. The utility model solves the technical problems by adopting the technical scheme that the furnace body waste heat circulation mechanism of the heating furnace is characterized by comprising a furnace body outer box, a heat insulation inner box arranged in the furnace body outer box and an air outlet pipe inserted at the top of the furnace body outer box; the upper, lower, left and right outer walls of the heat-insulating inner box are respectively spaced from the upper, lower, left and right inner walls of the furnace outer box by a certain distance, so that a rectangular ring heat conducting cavity is formed between the upper, lower, left and right outer walls of the heat-insulating inner box and the upper, lower, left and right inner walls of the furnace outer box, and the root opening of the air outlet pipe is communicated with the inside of the rectangular ring heat conducting cavity; a plurality of air inlet holes are formed in the top of the furnace body outer box. Preferably, the heat insulation inner box comprises a top plate and two coamings, wherein the top plate is transversely arranged, the coamings are fixed on the left side and the right side of the top plate and are symmetrically arranged respectively, a bottom plate is formed on the lower side edges of the coamings oppositely, and the end edges of the two bottom plates are mutually fixed. Preferably, the top plate is provided with a plurality of first heat conduction holes, and each bottom plate is provided with a plurality of second heat conduction holes. Preferably, the heat insulation cabin comprises two side plates which are vertically arranged and are respectively distributed in a bilateral symmetry and parallel mode, and two cover plates which are transversely arranged between the two side plates and are respectively distributed in an upper symmetry and parallel mode, and a rectangular cylindrical heat insulation cavity is formed between the two side plates and the two cover plates. Preferably, the bottom inner wall of the furnace body outer box is also fixedly provided with a plurality of partition plates which are vertically arranged, are sequentially arranged from front to back and are positioned below the heat insulation inner box, and the upper side edge of each partition plate is fixed between the bottom outer walls of the two bottom plates so that the bottom outer wall of the heat insulation inner box is spaced a certain distance from the bottom inner wall of the furnace body outer box. Preferably, a plurality of ventilation grooves which are distributed in sequence from left to right are formed in the edges of the upper side and the lower side of each partition plate at the leftmost side. Prefera