阅读说明：本技术 铸造现场烟气回收方法及可集尘回收的多功能铸造压铁 (Casting site flue gas recovery method and multifunctional casting iron weight capable of collecting dust and recovering ) 是由 郝宗洋 于 2019-09-26 设计创作，主要内容包括：一种可集尘回收的多功能铸造压铁,包括压铁本体,在压铁本体内开设贯通的烟气通道；烟气通道的侧面连接侧吸通道,烟气通道的底面连接顶吸通道；烟气通道的顶部连接有气体处理室,气体处理室内填充有气体处理介质；气体处理室的出气口顶部设有集气口；顶吸通道的进气口开在压铁本体的底面；侧吸通道的进气口开在压铁本体的侧面。一种基于铸造用压铁的铸造现场烟气回收方法,首先,在铸造用压铁本体中开设烟气通道；然后,把压铁本体置于铸型合箱状态的砂模砂箱上,并且烟气通道的进气口与浇口杯、砂模气孔和铸造冒口的位置对应；回收的烟气通过管路连接到烟气集中回收处理设备的进气口；集中回收处理设备具有抽气装置,在烟气通道内形成负压。(A multifunctional casting weight capable of collecting dust and recycling comprises a weight body, wherein a through flue gas channel is arranged in the weight body; the side surface of the flue gas channel is connected with the side suction channel, and the bottom surface of the flue gas channel is connected with the top suction channel; the top of the flue gas channel is connected with a gas treatment chamber, and a gas treatment medium is filled in the gas treatment chamber; the top of the gas outlet of the gas processing chamber is provided with a gas collecting port; an air inlet of the top suction channel is formed in the bottom surface of the weight body; the air inlet of the side suction channel is arranged on the side surface of the weight body. A casting site flue gas recovery method based on a casting weight comprises the following steps of firstly, forming a flue gas channel in a casting weight body; then, the weight body is placed on a sand mold sand box in a casting mold mould assembling state, and the air inlet of the flue gas channel corresponds to the positions of the sprue cup, the sand mold air hole and the casting riser; the recovered flue gas is connected to the gas inlet of the flue gas centralized recovery processing equipment through a pipeline; the centralized recovery processing equipment is provided with an air extractor, and negative pressure is formed in the flue gas channel.)

1. A multifunctional casting weight capable of collecting dust and recycling comprises a weight body and is characterized in that a through flue gas channel is arranged in the weight body; the side surface of the flue gas channel is connected with the side suction channel, and the bottom surface of the flue gas channel is connected with the top suction channel; the top of the flue gas channel is connected with a gas treatment chamber, and a gas treatment medium is filled in the gas treatment chamber; the top of the gas outlet of the gas processing chamber is provided with a gas collecting port;

the axis of the top suction channel is vertical, and an air inlet of the top suction channel is formed in the bottom surface of the weight body; the air inlet of the side suction channel is formed in the side face of the weight body;

the flue gas channel, the side suction channel and the top suction channel form a pressure iron gas collection part, and the gas treatment chamber filled with gas treatment medium forms a pressure iron gas treatment part.

2. The multifunctional foundry compacted iron capable of collecting dust and recovering dust according to claim 1, wherein a single-layer filter and a double-layer filter are respectively disposed in the gas inlet and the gas outlet of the gas processing chamber.

3. The multifunctional foundry weight capable of collecting and recycling dust according to claim 1, wherein the weight body has a rectangular parallelepiped shape.

4. The multifunctional casting weight capable of collecting dust and recycling according to claim 3, wherein at least one pair of outer walls of the weight body are provided with an inner recess, a lifting lug is arranged in the inner recess, and the lifting lug is integrally arranged in the inner recess space; the section of the lifting lug is I-shaped, and a convex part at the top end of the lifting lug forms an anti-unhooking structure;

and each corner position of the lifting lug appearance structure is a fillet structure, and the lifting lug appearance structure has a drawing inclination of 5 degrees.

5. The multifunctional foundry weight of claim 1 wherein a sealing baffle is removably attached to the suction port of the side suction channel.

6. The multifunctional foundry weight capable of collecting dust and recovering dust according to claim 1, wherein the weight body has a plurality of same, which are stacked and detachably connected one above another in sequence;

the laminated detachable connecting structure comprises: a plurality of first counter bores are formed in the upper end face of the weight body respectively, and positioning pins are arranged in the first counter bores; the exposed counter bore part of the positioning pin is in a cone shape; a plurality of second counter bores corresponding to the shapes of the positioning pins are formed in the lower end face of the weight body;

the upper end surface of the weight body is provided with an inwards concave cavity, and the shape of an opening of the inwards concave cavity corresponds to the shape of an air inlet of the top suction channel; the edge of the opening of the concave cavity is connected with a sealing ring;

the gas collecting port is connected in the inner concave cavity, and the top surface of the gas collecting port is lower than the opening end surface of the inner concave cavity and higher than the bottom surface of the inner concave cavity; the air collecting port is in clearance fit with the concave cavity;

the space between the inner wall of the concave cavity and the outer wall of the gas collection port forms a liquid accumulation groove, and gas treatment liquid is filled in the liquid accumulation groove; the gas treatment liquid permeates into the gas treatment chamber from the position where the gas collection port is in clearance fit with the concave cavity;

the liquid accumulating tank filled with gas treating liquid and the gas treating chamber filled with gas treating medium constitute the pressure iron gas treating part.

7. The multifunctional casting weight capable of collecting dust and recycling according to claim 6, wherein a sealing groove for receiving a sealing ring is formed on the upper end surface of the weight body, and the lower portion of the sealing ring is located in the sealing groove.

8. A flue gas recovery method for a casting site is characterized in that firstly, a flue gas channel is arranged in a casting weight body; then, the weight body is placed on a sand mold sand box in a casting mold mould assembling state, and the air inlet of the flue gas channel corresponds to the positions of the sprue cup, the sand mold air hole and the casting riser, so that flue gas recovery is carried out; the recovered flue gas is connected to the gas inlet of the flue gas centralized recovery processing equipment through a pipeline; the centralized recovery processing equipment is provided with an air extractor, and negative pressure is formed in the flue gas channel;

the method comprises the following specific steps:

1) the inner cavity of the flue gas channel forms a combustion chamber, and a pilot device is arranged in the combustion chamber to perform combustion treatment on the part which is insufficiently combusted in the recovered gas;

2) the top of the combustion chamber is connected with a gas processing chamber through an exhaust channel, and gas is further processed by filling a gas processing medium in the gas processing chamber;

3) the gas treated by the gas treatment chamber enters the liquid accumulation tank from a gas collection port of the gas treatment chamber, and the gas is further treated by the gas treatment liquid in the liquid accumulation tank;

4) the upper part of the liquid accumulation groove is connected with an air suction channel of an air inlet of the flue gas centralized recovery processing equipment, and a photocatalytic processing device is arranged in front of an inlet of the air suction channel to further process the gas.

9. The flue gas recovery method for the foundry as claimed in claim 8, wherein the flue gas which is not emitted from the positions of the pouring cup, the sand mold air hole and the casting riser is treated by the following method: a side suction channel is arranged on the side surface of the weight body, the side suction channel is communicated with the flue gas channel, and the side suction channel sucks the flue gas;

the air inlet end of the side suction channel is detachably connected with a sealing plate for starting or stopping the side suction channel.

10. The flue gas recovery method in the casting site according to claim 8, wherein the steps 1) to 3) are repeated for a plurality of times, and the method is realized by the following steps: the same plurality of weight bodies are detachably connected in a stacking manner, a flue gas channel of the upper weight body is communicated above the liquid accumulating groove of the lower weight body, the bottommost weight body is arranged on a sand mold box in a mold assembling state, and a suction channel of an air inlet of the flue gas centralized recovery processing device is connected above the liquid accumulating groove of the topmost weight body.