CN220706670U - Raw gas pressure relief system of calcium carbide furnace - Google Patents

Abstract

The utility model discloses a raw gas pressure relief system of a calcium carbide furnace, which comprises raw gas pipelines, wherein two pressure relief pipelines are fixedly connected to the side wall of each raw gas pipeline, when an emergency occurs, the pressure is still maintained at the manual control valve, and is transmitted to an automatic control valve through a sensor, the automatic control valve is automatically opened to start pressure relief work, so that the damage of a furnace body caused by overhigh pressure is avoided, the damage of an internal rubber tube is avoided, the normal operation of the operation is ensured, two groups of anchor clamps and other structures are simultaneously arranged, a plurality of ejector rods are forced to bear against an ejector ring, the sealing of the joint is ensured by utilizing a sealing rubber ring which is extruded and deformed by stress, and the occurrence of the situation that the joint of the pipelines is broken due to overlarge pressure is avoided.

Description

Raw gas pressure relief system of calcium carbide furnace

Technical field:

the utility model relates to the field of calcium carbide furnace production, in particular to a raw gas pressure relief system of a calcium carbide furnace.

The background technology is as follows:

the calcium carbide furnace is the main equipment for producing calcium carbide. The furnace burden is melted and reacted in the calcium carbide furnace due to the high temperature emitted by the electric arc, so that calcium carbide is generated. Since the reaction temperature is as high as 2000 c or higher, such high temperatures are generally not tolerated by refractory materials. The volume of the furnace body must be larger than the reaction space. That is, a layer of furnace burden should be reserved between the reaction zone and the furnace lining to protect the furnace lining.

The furnace body has a plurality of shapes, including round, oval, square and rectangle. From a thermodynamic point of view, a circular furnace is advantageous. In practice, the choice of the shape of the furnace body is mainly determined by the arrangement of the electrode locations and the installation location of the carbon monoxide extraction device. Most of the existing calcium carbide furnaces are round furnaces. Few other shapes are used.

The size of the reaction space in the furnace body is determined by the size and distance of the electrodes and the action range of the electric arc. The distance of the circular electrode is directly proportional to its diameter. While the electrode diameter is a function of the capacity of the furnace. The electrode diameter is in turn determined by the current density it allows. The current of the electrodes is in turn determined by the transformer capacity. The final conclusion is that the size of the furnace body is determined by the capacity of its transformer.

In the production process of the calcium carbide furnace, the pressure in the furnace is quite high, so that the manual control valve is arranged on the raw gas flue, when the detection pressure is too high, the manual control valve is operated, so that the pressure can be smoothly discharged, but the pressure in the furnace is not quite stable and suddenly low, the error of judgment of operators is easily caused, the pressure cannot be timely discharged, the pressure in the furnace is too high, the rubber tube is burnt, and the normal production is influenced.

The utility model comprises the following steps:

the utility model aims to provide a raw gas pressure relief system of a calcium carbide furnace.

The utility model is implemented by the following technical scheme:

the utility model provides a carbide stove raw gas pressure release system, includes the raw gas pipeline, two pressure release pipelines of lateral wall department fixedly connected with of raw gas pipeline, and fixed mounting has manual control valve on one of them pressure release pipeline, and fixed mounting has automatic control valve on another pressure release pipeline, fixed mounting has two sets of staple bolts on the raw gas pipeline, and every staple bolt of group is two, and fixedly connected with two first connecting plates between every two staple bolts of group, and equal fixedly connected with locking plate on every first connecting plate, all cup jointed sliding connection's clamp hoop on every pressure release pipeline, all be connected with two second connecting plates on a lateral wall of every clamp hoop, all fixedly connected with second locking plate on every second connecting plate, all be provided with a plurality of locking screw rods between every second locking plate and the corresponding first locking plate, all fixedly connected with a plurality of ejector pins on the lateral wall of every clamp hoop through a plurality of locking screw rods, all fixedly connected with a plurality of ejector rings between a plurality of ejector rings that are located same clamp hoop one end, all be connected with the stopper on every side of each side of fixed ring, all be provided with corresponding stopper with a plurality of sealing rings respectively.

Preferably, the top ring is composed of two semicircular rings, and two ends of the two semicircular rings are attached to each other.

Preferably, external threads are respectively arranged at two ends of the locking screw, nuts are respectively connected with two ends of the locking screw in a threaded mode, and the two nuts are respectively attached to the corresponding side walls of the second locking plate and the first locking plate.

Preferably, the anchor ear and the compression hoop are composed of two semi-rings, the two semi-rings are fixedly connected through bolts, and rubber extrusion blocks are fixedly arranged on the inner annular wall of each semi-ring in the anchor ear.

The utility model has the advantages that: when emergency occurs, the manual control valve still keeps the pressure release state, and pressure is transmitted to the automatic control valve through the sensor, the automatic control valve is automatically opened to start pressure release work, so that the furnace body damage caused by overhigh pressure is avoided, the situation of internal rubber tube damage is avoided, normal operation of work is guaranteed, two groups of anchor clamps and other structures are simultaneously arranged, a plurality of ejector rods are used for supporting the top ring forcefully, the sealing of the joint is guaranteed by utilizing the sealing rubber ring which is extruded and deformed by the force, and the occurrence of the situation that the joint of a pipeline is broken due to overlarge pressure is avoided.

Description of the drawings:

FIG. 1 is a schematic diagram of the structural system of the present utility model;

fig. 2 is a schematic diagram of the connection of the raw gas pipeline and the pressure release pipeline in the structure of the utility model.

In the figure: raw gas pipeline 1, pressure release pipeline 2, manual control valve 3, automatic control valve 4, staple bolt 5, first connecting plate 6, first locking plate 7, clamp hoop 8, second connecting plate 9, second locking plate 10, locking screw 11, ejector pin 12, top ring 13, sealing rubber ring 14, stopper 15.

The specific embodiment is as follows:

as shown in fig. 1 to 2, a raw gas pressure relief system of a calcium carbide furnace comprises a raw gas pipeline 1, two pressure relief pipelines 2 are fixedly connected to the side wall of the raw gas pipeline 1, a manual control valve 3 is fixedly installed on one pressure relief pipeline 2, an automatic control valve 4 is fixedly installed on the other pressure relief pipeline 2, two groups of hoops 5 are fixedly installed on the raw gas pipeline 1, each group of hoops 5 is two, two first connecting plates 6 are fixedly connected between each group of two hoops 5, first locking plates 7 are fixedly connected to each first connecting plate 6, pressing hoops 8 which are in sliding connection are sleeved on each pressure relief pipeline 2, two second connecting plates 9 are connected to one side wall of each pressing hoop 8, a plurality of locking screws 11 are arranged between each second locking plate 10 and the corresponding first locking plate 7, a plurality of pressing hoops 13 are fixedly connected to one side wall of each pressing hoop 13 through a plurality of locking rings 11, a plurality of pressing rings 13 are fixedly connected to one side wall of each pressing hoops 13, and a plurality of pressing rings 13 are fixedly connected to one side wall of pressing hoops 13 are respectively, and a plurality of pressing rings 13 are fixedly connected to one side of pressing rings are fixedly connected to each pressing ring 13.

The top ring 13 is composed of two semicircular rings, and two ends of the two semicircular rings are attached to each other.

External threads are respectively arranged at two ends of the locking screw 11, nuts are respectively screwed at two ends of the locking screw 11, and the two nuts are respectively attached to the corresponding side walls of the second locking plate 10 and the first locking plate 7.

The anchor ear 5 and the compression hoop 8 are composed of two semi-rings, the two semi-rings are fixedly connected through bolts, and rubber extrusion blocks are fixedly arranged on the inner annular wall of each semi-ring in the anchor ear 5.

During the use, it has high-pressure gas to flood in the waste gas pipeline 1, be under steady state when gas, can utilize pressure release pipeline 2 of manual control valve 3 department to carry out manual control pressure release, when the emergence emergency, that is in the stove atmospheric pressure suddenly low, when breaking through the critical value suddenly, manual control valve 3 department still keeps pressure release state this moment, and pressure passes through the sensor and transmits for automatic control valve 4 out, automatic control valve 4 opens, begin pressure release work, avoid appearing the too high pressure and cause the furnace body to damage, avoid appearing the condition that inside rubber tube damaged, guarantee the normal clear of work, simultaneously because the problem of pressure, lead to the junction to appear easily because the urgent leakage that the pressure is big and cause or the condition that breaks appear in pipeline welded part, be provided with two sets of staple bolts 5, two sets of staple bolts 5 are tightly fixed on waste gas pipeline 1, utilize first locking plate 7 and second locking plate 10 to connect through a plurality of locking screw 11, make the state that clamp ferrule 8 keep pulling left (in the left direction in figure 1 just to be close to first locking plate 7), avoid appearing the pressure to cause the furnace body damage, avoid appearing in the condition that the inside rubber ring is broken, the pressure ring is used to the sealing ring that makes the sealing ring that the stopper is used for sealing ring 13 to be used for sealing ring to be compressed tightly to the place in the sealing ring that the sealing ring is used for sealing ring that is used for sealing ring 13 is enough to be compressed tightly to be used for sealing ring 13, the place is located in the place is enough time to be used for sealing ring 13 to be used for sealing ring to be used to the place in the place is 13, the place is pressed in the place is much time to the place is much 13 to the place is to the place 13 and 13 to the place is to the place is to the life 13.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (4)

1. The utility model provides a carbide stove raw coke oven gas pressure release system which characterized in that: including the waste gas pipeline, the lateral wall department fixedly connected with two pressure release pipelines of waste gas pipeline, fixed mounting has manual control valve on one of them pressure release pipeline, fixed mounting has automatic control valve on another pressure release pipeline, fixed mounting has two sets of staple bolt on the waste gas pipeline, every staple bolt of group is two, two first connecting plates of fixedly connected with between every two staple bolts of group, equal fixedly connected with first locking plate on every first connecting plate, all cup jointed sliding connection's clamp hoop on every pressure release pipeline, all be connected with two second connecting plates on a lateral wall of every clamp hoop, all fixedly connected with second locking plate on every second connecting plate, be provided with a plurality of locking screw between every second locking plate all and the corresponding first locking plate, every second locking plate all is through a plurality of locking screw fixed connection with corresponding first locking plate, all fixedly connected with a plurality of ejector pins on the lateral wall of every clamp hoop, be located fixedly connected with top ring between a plurality of ejector pin one ends on the same clamp hoop, one side of every clamp ring all is connected with the stopper with corresponding stopper, all fixedly connected with a plurality of stopper lateral wall of stopper respectively.

2. The raw gas pressure relief system of a calcium carbide furnace according to claim 1, wherein: the top ring is composed of two semicircular rings, and two ends of the two semicircular rings are attached to each other.

3. The raw gas pressure relief system of a calcium carbide furnace according to claim 1, wherein: the two ends of the locking screw are respectively provided with external threads, the two ends of the locking screw are respectively connected with nuts in a threaded manner, and the two nuts are respectively attached to the corresponding side walls of the second locking plate and the first locking plate.

4. The raw gas pressure relief system of a calcium carbide furnace according to claim 1, wherein: the anchor ear and the clamp hoop are composed of two semi-rings, the two semi-rings are fixedly connected through bolts, and rubber extrusion blocks are fixedly arranged on the inner annular wall of each semi-ring in the anchor ear.