CN204787779U - Marching type enamel fritting furnace - Google Patents

Abstract

The utility model discloses a walking-type sintering furnace, which comprises a furnace body and a feeding line. The inside of the furnace body is provided with a furnace lining for heat preservation. A drying area and a sintering area are provided inwardly from the feed inlet, and a movable furnace door is provided at the feeding end and the discharging end of the sintering area, and a pneumatic device for opening and closing the movable furnace door is fixed on the outer wall of the furnace body. , the pneumatic device is connected with the control device; the feeding line is an annular feeding line, and the feeding line passes through the inlet and outlet of the furnace body. Material area; the feeding line is driven by a stepping transmission device, which is connected to the control device, and adopts a stepping feeding method to shorten the length of the sintering area and reduce the floor area of the furnace body , to reduce energy consumption.

Description

Walking enamel sintering furnace

technical field

The utility model relates to the field of industrial high-temperature processing, in particular to a walking-type enamel sintering furnace.

Background technique

The production process of enamel products generally goes through the following stages: billet making, glaze making, enamelling, sintering, flower decoration, etc. The sintering link goes through three steps: drying, high-temperature sintering, and cooling. The sintering link is a stage with high energy consumption, high scrap rate and high time-consuming. The traditional sintering furnace adopts the method of continuously feeding materials into the furnace body for sintering. This method makes the sintering area of the sintering furnace long enough to be fully sintered. The sintering furnace occupies a large area, and the entire sintering area needs to be installed The heating element keeps the furnace at a high temperature, the space in the furnace is large, the temperature rises slowly in the furnace, and the energy consumption is high.

Utility model content

The purpose of the utility model is to provide a walking-type enamel sintering furnace which can reduce the occupied area of the furnace body and reduce energy consumption in view of the deficiencies in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a step-by-step enamel sintering furnace, including a furnace body and a feeding line, the inner side of the furnace body is provided with a furnace lining for heat preservation, and the two ends of the furnace body are respectively provided with feeding ports and the discharge port, the furnace body is provided with a drying area and a sintering area sequentially along the feed port, the feed end and the discharge end of the sintering area are equipped with movable furnace doors, and the outer wall of the furnace body is fixed for The pneumatic device for opening and closing the movable furnace door, the pneumatic device is connected with the control device; the feeding line is an annular feeding line, and the feeding line is set through the feeding port and the discharging port of the furnace body, and the feeding line includes a heating furnace inside the furnace body area and the loading and unloading area outside the furnace body; the feeding line is driven by a stepping transmission device, which is connected with the control device. The feeding line is driven by a stepping transmission device. The stepping transmission device is connected to the controller, and the controller is connected to the pneumatic device. When the feeding line is driving and feeding, the control device controls the pneumatic device to open the furnace door. When the feeding line stops feeding, The controller controls the pneumatic device to close the furnace door, and sets the working interval of the stepping transmission device so that when it stops, the products on the feeding line are all located in the sintering area, and when it starts up again, the products in the sintering area complete the high-temperature sintering process , Using the step-by-step feeding method, the length of the sintering section is short, so that the heating time in the furnace body is short, the heat energy loss in the furnace body is small, and the thermal efficiency is high.

Preferably, heating elements are provided inside the drying zone and the sintering zone. The total power of the heating elements installed inside the sintering area is relatively large, which is used to raise the temperature in the sintering area. The drying area is located at the front end of the sintering area. When the moving furnace door is opened, part of the heat in the sintering area is dissipated into the drying area to form a sintering area. Heat is provided, so that the heating elements in the drying zone require less power, to assist in raising the temperature inside the drying zone to dry and preheat the enamelled products in the drying zone.

Preferably, heat insulation devices are provided on the outer sides of the movable furnace doors on both sides of the sintering zone. When the movable furnace door is opened, since the temperature in the high temperature zone is much higher than that of the drying zone and the outside of the furnace body, the heat in the sintering zone dissipates quickly from the openings of the feed end and the discharge end. The heat insulation device is set to reduce the heat loss in the sintering area, so that the temperature in the sintering area rises faster, and at the same time, it can protect the staff outside the furnace body from being burned by high temperature.

Preferably, a heat preservation cover is provided on the side wall of the furnace body, and the movable furnace door enters into the heat preservation cover after opening. Since the temperature of the movable furnace door is close to the temperature of the furnace body in the sintering zone, after the movable furnace door is opened, the temperature of the movable furnace door is lowered due to the heat exchange between the movable furnace door and the air at room temperature. The furnace door absorbs the heat in the sintering zone, accelerates the loss of heat in the sintering zone, and increases energy consumption. The above-mentioned situation can be slowed down by setting a heat preservation cover.

Preferably, the heat insulation device includes a centrifugal motor and an impeller, and the centrifugal motor drives the impeller to rotate to form a hot air curtain. The internal circulation hot air curtain formed by driving the impeller with a centrifugal motor has a better heat insulation effect than the traditional direct blowing air curtain.

Preferably, the furnace body is provided with an inspection door near the discharge end in the drying area. Product inspection after drying can be carried out to reduce the failure rate of products.

Preferably, the feeding line is a suspension chain, the suspension chain is provided with evenly distributed hooks, and the top of the furnace body is provided with a track for the suspension chain to pass through. The hanging chain goes from the top of the furnace body, and the product is fixed on the hanging chain through the hook, and the hanging heating makes the product evenly heated.

The double-layer enamel sintering furnace with the above structure adopts a step-by-step feeding method, which shortens the length of the sintering zone, reduces the floor area of the furnace body, and reduces energy consumption.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The walking-type enamel sintering furnace shown in Figure 1 includes a furnace body 1 and a feeding line 2. The inner wall of the furnace body 1 is provided with a furnace lining 13 for heat preservation. The fiber folding block is formed by inserting anchors. The two ends of the furnace body 1 are respectively provided with a feed port and a discharge port. 11 and the inside of the sintering zone 12 are equipped with heating elements, and the heating elements form heat radiation to heat the products passing through the furnace body 1 after being energized. The drying zone 11 is used for drying and preheating the enamelled products, and the sintering zone 12 is used for high-temperature sintering treatment of the dried products. Both the feed end and the discharge end of the sintering zone 12 are equipped with movable furnace doors, and a pneumatic device 4 for opening and closing the movable furnace door 3 is fixed on the outer wall of the furnace body 1, which can be a cylinder or an air pump. The pneumatic device 4 is connected with the control device (not shown in the figure) is connected, and the control device controls the movement of the pneumatic device 4 to control the opening and closing of the movable furnace door 3. When the movable furnace door 3 is opened, part of the heat in the sintering zone 12 is dissipated into the drying zone 11, so , the total power of the heating elements in the drying area 11 is required to be small, and an insulation cover 7 is provided on the outer wall of the furnace body 1. When the movable furnace door 3 is opened, the movable furnace door 3 enters the inside of the insulation cover 7, and the heat preservation cover 7 is heat preservation of movable furnace door 3. In order to reduce heat loss in the sintering zone 12 and reduce energy consumption when the movable furnace door 3 is opened, heat insulation devices 6 are provided on the outer sides of the movable furnace door 3 on both sides of the sintering zone 12 .

The feed line 2 is an annular feed line, and the feed line 2 is directed to feed along the arrow in Fig. area and the loading and unloading area on the outside of the furnace body 1, where workers load and unload materials in the loading and unloading area. The feeding line 2 is driven by a stepping transmission device 5, which is connected to the control device, and the controller is connected to the pneumatic device 4. When the feeding line 2 is driving and feeding, the control device controls the pneumatic device 4 to open the movable furnace door 3. When the feeding line 2 stops feeding, the controller controls the pneumatic device 4 to close the moving furnace door 3, and sets the working interval of the stepping transmission device 5 so that when it stops, all the products on the feeding line 2 are just located in the sintering area 12 , and when starting up again, the products in the sintering zone 12 complete the high-temperature sintering process. Using the step-by-step feeding method, the length of the sintering zone 12 is short, so that the heating time in the furnace body 1 is short, and the heat energy loss in the furnace body 1 is short. Small, high thermal efficiency.

In order to facilitate the inspection of the product quality after drying and improve the firing quality of the product, the furnace body 1 is provided with an inspection door 8 near the discharge end of the drying zone 11 .

Claims (7)

1. Walking-type enamel sintering furnace, including a furnace body and a feeding line, is characterized in that a furnace lining for heat preservation is provided on the inner side of the furnace body, and a feed inlet and a discharge port are respectively provided at both ends of the furnace body, and the furnace body is along the A drying area and a sintering area are provided inwardly from the feed inlet, and a movable furnace door is provided at the feeding end and the discharging end of the sintering area, and a pneumatic device for opening and closing the movable furnace door is fixed on the outer wall of the furnace body. , the pneumatic device is connected with the control device; the feeding line is an annular feeding line, and the feeding line passes through the inlet and outlet of the furnace body. Material area; the feeding line is driven by a stepping transmission device, which is connected with the control device. 2. The walk-in enamel sintering furnace according to claim 1, characterized in that heating elements are arranged inside the drying area and the sintering area. 3. The walk-in enamel sintering furnace according to claim 1, characterized in that heat insulation devices are provided on the outer sides of the movable furnace doors on both sides of the sintering zone. 4. The walk-in enamel sintering furnace according to claim 1, characterized in that a heat preservation cover is provided on the side wall of the furnace body, and the movable furnace door enters into the heat preservation cover after opening. 5. The walk-in enamel sintering furnace according to claim 3, characterized in that the heat insulation device comprises a centrifugal motor and an impeller, and the centrifugal motor drives the impeller to rotate to form a hot air curtain. 6. The walk-in enamel sintering furnace according to claim 1, characterized in that, the furnace body is provided with an inspection door near the discharge end in the drying area. 7. The walk-in enamel sintering furnace according to claim 1, characterized in that, the feeding line is a suspension chain, the suspension chain is provided with evenly distributed hooks, and the top inside the furnace body is provided with a suspension chain for passing through. trail of.