CN218455359U

CN218455359U - Temperature equalizing plate for fire grate heater

Info

Publication number: CN218455359U
Application number: CN202221679936.8U
Authority: CN
Inventors: 马超
Original assignee: Kunshan Huiduobao Industrial Equipment Co ltd
Current assignee: Kunshan Huiduobao Industrial Equipment Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-02-07
Anticipated expiration: 2032-06-30

Abstract

The utility model belongs to the technical field of firing equipment, a samming board for fire grate heater is related to, including the orifice plate, the orifice plate including be located the centre the sclausura district with the porose district that sclausura district bilateral symmetry set up, be equipped with the bleeder vent that the rule was arranged in the porose district. The temperature equalizing plate is arranged above the fire grate heater, wherein the non-porous area is opposite to the flame of the fire grate heater, and the porous area is provided with air holes for hot air to pass through. The heating of the position nearest to the flame is restrained, and the heat transfer of the two sides far away from the flame is increased, so that the heat supply of the fire grate heater is uniformly distributed on the surface of the temperature equalizing plate, and a uniform heating surface with the temperature difference within +/-5 ℃ is provided for the product passing above.

Description

Temperature equalizing plate for fire grate heater

Technical Field

The utility model relates to a firing equipment technical field, in particular to a temperature equalization board for fire grate heater.

Background

When the continuous mesh belt conveying drying furnace, the moisture drying furnace, the mesh belt heat treatment furnace and the small aluminum alloy magnesium alloy workpiece heat treatment furnace are used, a gas burner is needed to heat the bottom of the furnace, the heated workpiece is placed on a continuously-driven high-temperature-resistant stainless steel mesh belt or a Teflon conveyor belt in the middle of a furnace body, and the other side of the furnace body moves from one side of the drying furnace at a constant speed, and the drying furnace needs to be heated to a temperature of 80-650 ℃. However, even with the prior burner with good uniformity, the product still has temperature fluctuation of +/-20 ℃ due to the change of distance from the heating center when passing between the adjacent burners, and the process requirement cannot be met.

Therefore, it is necessary to provide a vapor chamber to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a temperature-uniforming plate for fire grate heater can provide the even temperature in the undulant 5 ℃ of product direction of delivery temperature for furnace, has ensured the quality of product.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a temperature equalization board for fire grate heater, includes the orifice plate, the orifice plate is including the sclausura district that is located the centre and the porose district that sclausura district bilateral symmetry set up, be equipped with the bleeder vent of rule arrangement in the sclausura district, the top of fire grate heater is located to the temperature equalization board, and wherein the sclausura district is just to the flame of fire grate heater, and the porose district is equipped with the bleeder vent that hot blast passed.

Specifically, the porous area is divided into a sparse porous area close to the non-porous area and a dense porous area far away from the non-porous area, the widths of the non-porous area, the sparse porous area and the dense porous area are the same, a first air hole is formed in the sparse porous area, a second air hole is formed in the dense porous area, and the hole distance of the first air hole is 2-3 times that of the second air hole.

Furthermore, the aperture of the second air hole is 2-3 times of that of the first air hole.

Specifically, the non-hole area is provided with a penetrating part, and a replaceable heat-resistant plate is embedded in the penetrating part.

Specifically, four support plates are vertically arranged on the same surface of the pore plate, and the support plates are positioned at the junction of the non-pore region and the porous region and at the outermost side of the porous region.

The utility model discloses technical scheme's beneficial effect is:

the temperature equalizing plate is arranged above the fire grate heater, wherein the non-porous area is opposite to the flame of the fire grate heater, and the porous area is provided with air holes for hot air to pass through. The heating of the position nearest to the flame is restrained, and the heat transfer of the two sides far away from the flame is increased, so that the heat supply of the fire grate heater is uniformly distributed on the surface of the temperature equalizing plate, and a uniform heating surface with the temperature difference within +/-5 ℃ is provided for the product passing above.

Drawings

FIG. 1 is a bottom view of an example vapor plate;

FIG. 2 is a perspective view of a vapor chamber according to an embodiment.

The figures in the drawings represent:

1-non-porous area, 11-refractory plate;

2 a-a first sparse hole area, 2 b-a second sparse hole area and 21-a first air hole;

3 a-a first dense hole area, 3 b-a second dense hole area, and 31-a second breather hole;

4a, 4b, 4c, 4 d-support plates.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

The embodiment is as follows:

as shown in fig. 1 and fig. 2, the utility model discloses a temperature-uniforming plate for fire grate heater, including the orifice plate, the orifice plate is equipped with the bleeder vent of regularly arranging (including first bleeder vent 21, second bleeder vent 31) including the sclausura district 1 that is located in the middle and the porose district that sets up in sclausura district 1 bilateral symmetry on the sclausura district. The fire grate heater can provide a linear combustion range, the temperature equalizing plate is arranged above the fire grate heater, and the non-hole area 1 is over against the flame of the fire grate heater, so that hot air cannot directly pass through the non-hole area. Therefore, the heating at the position nearest to the flame is inhibited, the heat transfer at the two sides far away from the flame is increased, the heat supply of the fire grate heater is more uniformly distributed on the surface of the temperature equalizing plate, and a uniform heating surface with the temperature difference within +/-5 ℃ is provided for products passing above.

As shown in fig. 1 and 2, the porous region is divided into a porous region (a first porous region 2a, a second porous region 2 b) close to the non-porous region 1 and a dense region (a first dense region 3a, a second dense region 3 b) far from the non-porous region 1, the

porous regions

2a, 2b and the

dense regions

3a, 3b have the same width, the

porous regions

2a, 2b have first vents 21 therein, the

dense regions

3a, 3b have second vents 31 therein, and the hole pitch of the first vents 21 is 2-3 times the hole pitch of the second vents 31. The first porous area 2a and the first porous area 3a are positioned on the same side of the non-porous area 1, and the second porous area 2b and the second porous area 3b are positioned on the same side of the non-porous area 1. The arrangement of the first airing holes 21 is different from the arrangement of the second airing holes 31. The whole pore plate is in a state of becoming dense towards the pores on the two sides, so that the airflow of the hot air is guided towards the two sides, the heat in the middle is distributed towards the two sides, and the uniformity of the temperature is better realized.

As shown in fig. 1 and 2, the second airing hole 31 has a pore size 2 to 3 times that of the first airing hole 21. In the case that the second airing hole 31 has a larger diameter than the first airing hole 21, the resistance of the second airing hole 31 is smaller than that of the first airing hole 21, so that more hot air is blown out from the dense hole area, and the heat in the middle and both sides is balanced.

As shown in fig. 1 and 2, the imperforate section 1 has a through-penetration portion with a replaceable refractory plate 11 embedded therein. Because the non-hole area 1 directly faces the fire grate heater, the non-hole area is easier to damage, so that the non-hole area can be replaced after being damaged, the whole non-hole area is not required to be scrapped, and the use cost is saved.

As shown in fig. 1 and fig. 2, four

support plates

4a, 4b, 4c, 4d are vertically disposed on the same surface of the orifice plate, the support plate 4a is located at the outermost side of the second porous area 3a, the support plate 4b is located at the boundary between the non-porous area 1 and the first porous area 2a, the support plate 4c is located at the boundary between the non-porous area 1 and the second porous area 2b, and the support plate 4d is located at the outermost side of the second porous area 3 b. The four supporting

plates

4a, 4b, 4c and 4d can enable the orifice plate to be erected above the fire grate heater, and collapse and deformation caused by softening of the orifice plate by heating are reduced.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which all fall within the scope of the invention.

Claims

1. The utility model provides a temperature-uniforming plate for fire row heater, includes the orifice plate, its characterized in that: the pore plate comprises a non-porous area in the middle and porous areas symmetrically arranged on two sides of the non-porous area, air holes regularly distributed are arranged on the porous area, the temperature equalizing plate is arranged above the fire grate heater, the non-porous area is over against the flame of the fire grate heater, and the porous area is provided with the air holes for hot air to pass through.

2. The vapor chamber for a fire grate heater of claim 1, wherein: the porous area is divided into a non-porous area close to the non-porous area and a dense-porous area far away from the non-porous area, the non-porous area and the dense-porous area are the same in width, a first air hole is arranged in the non-porous area, a second air hole is arranged in the dense-porous area, and the hole distance of the first air hole is 2-3 times of that of the second air hole.

3. The vapor chamber for a fire grate heater of claim 2, wherein: the aperture of the second air hole is 2-3 times of that of the first air hole.

4. The vapor chamber for a fire grate heater of claim 1, wherein: the non-hole area is provided with a penetrating part, and a replaceable heat-resistant plate is embedded in the penetrating part.

5. The vapor chamber for a fire grate heater of claim 1, wherein: four supporting plates are vertically arranged on the same surface of the pore plate, and the supporting plates are positioned at the junction of the non-pore region and the porous region and at the outermost side of the porous region.