CN217737242U - Circulating heating type heat collection combustion furnace for drying - Google Patents

Abstract

The utility model relates to a cyclic heating formula is dried and is used thermal-arrest to fire burning furnace, including the shell body with set firmly in interior casing in the shell body has set firmly along vertical upper cover and the lower closing cap of arranging between shell body and the interior casing, upper cover, lower closing cap, interior casing and shell body enclose into the cavity and form the heating chamber, and the inner chamber of interior casing forms the combustion chamber, has set firmly the intercommunication on the shell body the admission line and the pipeline of giving vent to anger of heating chamber. The utility model discloses a set up the heat insulating board in the heating chamber and form a plurality of zone of heating, utilize the gas through-hole on the heating baffle, make gaseous form certain circulation reciprocal in the zone of heating, prolonged gaseous dwell time in the heating chamber, make gaseous and interior casing carry out more abundant heat transfer, the effectual heat utilization rate that has improved, except providing the required high temperature flue gas of conventional thermal-arrest mode, still provide the gas of the clean high temperature who directly is used for the stoving simultaneously.

Description

Circulating heating type heat collection combustion furnace for drying

Technical Field

The utility model relates to a stoving mechanical equipment technical field especially involves a circulation adds hot type stoving and fires burning furnace with thermal-arrest.

Background

At present, drying mechanical equipment is widely applied in industry and agriculture, a combustion furnace is usually arranged in the drying mechanical equipment and used for providing heat energy required by drying materials, the heat energy generated by the combustion furnace uses air as a carrier to perform heat exchange with the materials to be dried in a dryer, and the materials are dried, and the drying equipment is generally directly heated by using high-temperature flue gas of the combustion furnace.

However, the conventional drying equipment has the problems of low thermal efficiency, low heating temperature of gas and incapability of fully utilizing the heat generated by a combustion furnace.

Disclosure of Invention

The utility model discloses to prior art's not enough, provide a circulation adds hot type stoving and fires burning furnace with thermal-arrest, improved the heat utilization rate who fires burning furnace production by a wide margin.

The utility model discloses a following technical scheme realizes, provides a circulation adds hot type stoving and fires burning furnace with thermal-arrest, including the shell body with set firmly in interior shell body in the shell body sets firmly along vertical last closing cap and the lower closing cap of arranging between shell body and the interior shell body, go up closing cap, lower closing cap, interior shell body and enclose into the cavity and form the heating chamber, the inner chamber of interior shell body forms the combustion chamber, has set firmly the intercommunication on the shell body the admission line and the pipeline of giving vent to anger of heating chamber.

This scheme is through setting up closing cap and lower closing cap, makes closing cap, lower closing cap, interior casing and shell body enclose into the cavity and forms the heating chamber, heats the air in the heating chamber through the heat that the combustion chamber burning produced, and the heating chamber encircles around including the casing, has increased heat transfer area, provides certain buffer space for the air through the heating chamber that sets up the formation simultaneously, has prolonged heat transfer time.

As optimization, a plurality of heat insulation plates which are arranged in sequence along the vertical direction are fixedly arranged in the heating chamber, the upper side and the lower side of each heat insulation plate are respectively provided with a heating layer, and the heat insulation plates are provided with gas through holes communicated with the two adjacent heating layers. This optimization scheme forms the zone of heating through setting up the heat insulating board, makes and forms a plurality of heat transfer units in the heating chamber, has further improved the heat transfer effect.

As optimization, the heights of the heating layers are sequentially decreased from top to bottom. The setting of this optimization scheme, the interval from the top down of heat insulating board is encrypted gradually, and the temperature variation of interior casing when more accords with the burning changes.

Preferably, the gas through holes on the heat insulation plates are arranged in a staggered mode in the vertical direction. The setting of this optimization scheme has avoided each gas through-hole along vertical direction relative for gas gets into to the zone of heating after, changes the flow direction under the effect of blockking of baffle, thereby has realized the circulation flow heating in the zone of heating.

As optimization, the inlet duct is arranged on the heating layer side wall on the uppermost layer, and the outlet duct is arranged on the heating layer side wall on the lowermost layer. The arrangement of the optimized scheme increases the flowing distance of gas, thereby prolonging the heat exchange time.

As optimization, the cover plate is placed at the upper opening of the inner shell, the upper part of the side wall of the inner shell is connected with a chimney which transversely penetrates out of the outer shell, and one end, far away from the inner shell, of the chimney extends upwards. This optimization scheme's setting is favorable to reducing the calorific loss when burning, wears out the chimney through the shell body, has carried out further utilization to the heat of chimney, utilizes the flue to collect the flue gas simultaneously, has realized providing the function of high temperature flue gas.

As optimization, the bottom of the outer shell is provided with a U-shaped supporting leg with a downward opening and a slag box below the inner shell, and the U-shaped cavity of the U-shaped supporting leg is matched with the slag box. This optimization scheme has improved the stability of whole burning furnace through setting up U type supporting leg, and the feed sediment box provides simultaneously and places the space to play the positioning action to the material sediment box, through setting up the material sediment box, be convenient for collect and handle the material sediment.

The utility model has the advantages that: form a plurality of zone of heating through set up the heat insulating board in the heating chamber, utilize the gas through-hole on the heating baffle, make gaseous form certain circulation reciprocal in the zone of heating, prolonged gaseous dwell time in the heating chamber, make gaseous and interior casing carry out more abundant heat transfer, the effectual heat utilization rate that has improved, except providing the required high temperature flue gas of conventional thermal-arrest mode, still provide the clean high temperature gas that directly is used for the stoving simultaneously.

Drawings

Fig. 1 is a schematic structural view of an inner shell of the present invention;

FIG. 2 is a schematic view of the outer casing structure of the present invention;

shown in the figure:

1. u type supporting leg, 2, shell body, 3, interior casing, 4, the gas through-hole of the top heat insulating board, 5, interior exhaust hole, 6, combustion chamber, 7, upper seal cover, 8, admission line mounting hole, 9, admission line, 10, the zone of heating, 11, the crisscross through-hole of gas, 12, heat insulating board, 13, the pipeline mounting hole of giving vent to anger, 14, the pipeline of giving vent to anger, 15, lower seal cover.

Detailed Description

In order to clearly explain the technical features of the present solution, the present solution is explained by the following detailed description.

As shown in fig. 1, a heat collecting combustion furnace for cyclic heating type drying comprises an outer shell 2 and an inner shell 3 fixed in the outer shell, wherein the outer shell forms an outer wall of the combustion furnace, an upper panel 19 is fixedly connected to the outer side of the upper end of the outer wall of the combustion furnace, the inner shell forms an inner wall of the combustion furnace, an upper sealing cover 7 and a lower sealing cover 15 which are vertically arranged are fixed between the outer shell and the inner shell, the upper sealing cover is positioned at the upper end of the inner shell, a round hole matched with an upper opening of the inner shell is formed in the upper sealing cover, the lower sealing cover is positioned at the lower end of the inner shell, a round hole matched with a lower opening of the inner shell is formed in the lower sealing cover, the upper sealing cover is fixedly connected with the inner shell and the outer shell, and the lower sealing cover is fixedly connected with the inner shell and the outer shell.

Go up the cavity that closing cap, lower closing cap, interior casing and shell body enclose and form the heating chamber, the inner chamber of interior casing forms combustion chamber 6, has set firmly the intercommunication on the shell body the admission line 9 and the pipeline 14 of giving vent to anger of heating chamber set up the admission line mounting hole 8 of being connected and the adaptation with the admission line on the shell body to and the pipeline mounting hole 13 of giving vent to anger of being connected and the adaptation with the pipeline of giving vent to anger. The air inlet pipeline is used for introducing normal temperature gas into the heating chamber, and the air outlet pipeline is used for discharging heated high-temperature gas. In order to prolong the flowing distance of the gas, the gas inlet pipeline of the embodiment is arranged on the heating layer side wall of the uppermost layer, and the gas outlet pipeline is arranged on the heating layer side wall of the lowermost layer.

The heating chamber is internally and fixedly provided with a plurality of heat insulation plates 12 which are sequentially arranged along the vertical direction, the heat insulation plates are fixedly connected with the outer wall of the combustion furnace and the inner wall of the combustion furnace, the upper side and the lower side of each heat insulation plate are respectively provided with a heating layer 10, and the heat insulation plates are provided with gas through holes which are communicated with two adjacent heating layers, so that a plurality of layers of heating layers which are not equidistantly staggered and communicated are formed in the heating chamber. The distance between the heat insulation plates is gradually encrypted from top to bottom according to the temperature change of the furnace body, so that the heights of the heating layers are sequentially decreased from top to bottom. The gas through holes on the heat insulation plates are arranged in a staggered mode in the vertical direction, specifically, the gas through holes 4 of the uppermost heat insulation plate are arranged at the diagonal positions of the uppermost heat insulation plate, and the gas staggered through holes 11 are arranged on the other heat insulation plates according to the longitudinal section, so that gas can flow transversely under the blocking of the heat insulation plates after entering the heating layer, circular reciprocating flow is formed in the whole heating chamber, heat generated by the combustion furnace is fully utilized, and the heat exchange effect is improved.

The apron has been placed to the last mouth of interior casing, as shown in fig. 2, the lateral wall upper portion of interior casing is connected with along transversely wearing out the chimney 17 of shell body, and the chimney is kept away from the one end of interior casing and is upwards extended, set up the outer cigarette hole 18 of arranging with the chimney adaptation on the shell body, set up the interior cigarette hole 5 of arranging with chimney adaptation and being connected on the interior casing.

The bottom of shell body is equipped with opening U type supporting leg 1 down to and be located the material sediment box 16 of interior casing below, the processing of material sediment is realized with the cooperation of material sediment box 16 to the combustion furnace outer wall, the U die cavity and the material sediment box adaptation of U type supporting leg, the detachable cooperation of material sediment box and U type supporting leg, the outside rigid coupling handle 20 of material sediment box to conveniently operate the material sediment box.

The working principle and process of a circulating heat collection combustion furnace for heating and drying are as follows:

and (3) combustion: the operator places the fuel in the furnace chamber 6 and ignites it; the high temperature flue gas produced by combustion is sent to a heat exchanger through a chimney 17 to heat the cold air, and the burnt-out slag is discharged from a slag box 16.

The working principle of the circulation heating system is as follows:

heating process: normal temperature gas enters the uppermost layer of the gas heating chamber through the gas inlet pipeline 9, enters the second layer of the heating layer of the gas heating chamber in non-equidistant staggered communication through the gas through holes, sequentially passes through the non-equidistant staggered communication heating layer 10 formed by the heat insulation plate in the above mode for heating, prolongs the residence time of the gas heating chamber in a circulating reciprocating mode, further performs sufficient heat exchange with the inner wall of the combustion furnace to obtain pure hot gas, and finally collects the pure hot gas through the heat collection gas outlet pipeline.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims (7)

1. The utility model provides a circulation adds hot type stoving and uses thermal-arrest burning furnace which characterized in that: including shell body (2) and set firmly in interior casing (3) of shell body, set firmly between shell body and the interior casing along vertical upper cover (7) and the lower closing cap (15) of arranging, upper cover, lower closing cap, interior casing and shell body enclose into the cavity and form the heating chamber, and the inner chamber of interior casing forms combustion chamber (6), sets firmly the intercommunication on the shell body inlet line (9) and the pipeline (14) of giving vent to anger of heating chamber.

2. The heat collecting combustion furnace for circulation heating type drying as claimed in claim 1, wherein: a plurality of heat insulation plates (12) which are sequentially arranged along the vertical direction are fixedly arranged in the heating chamber, the upper side and the lower side of each heat insulation plate are respectively provided with a heating layer (10), and the heat insulation plates are provided with gas through holes communicated with two adjacent heating layers.

3. The heat collecting combustion furnace for circulation heating type drying as claimed in claim 2, wherein: the heights of the heating layers are gradually decreased from top to bottom.

4. The heat collecting combustion furnace for circulation heating type drying as claimed in claim 2, wherein: the gas through holes on the heat insulation plates are arranged in a staggered mode in the vertical direction.

5. The heat collecting combustion furnace for circulation heating type drying as claimed in claim 2, wherein: the inlet duct sets up the zone of heating lateral wall in the superiors, the pipeline of giving vent to anger sets up the zone of heating lateral wall in the lower floor.

6. The heat collecting combustion furnace for circulation heating type drying as claimed in claim 1, wherein: the upper opening of the inner shell is provided with a cover plate, the upper part of the side wall of the inner shell is connected with a chimney (17) which transversely penetrates out of the outer shell, and one end of the chimney, far away from the inner shell, extends upwards.

7. The heat collecting combustion furnace for circulation heating type drying as claimed in claim 1, wherein: the bottom of shell body is equipped with opening U type supporting leg (1) down to and be located interior shell body below slag box (16), the U die cavity and the slag box adaptation of U type supporting leg.

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