A calcium carbide furnace gas balance and pressure stabilization system

Abstract

The utility model relates to a calcium carbide furnace gas balance and pressure stabilization system, which belongs to the technical field of calcium carbide furnaces, and comprises a calcium carbide furnace, a purification component, a clean gas blower, a gas main and a gas branch pipe. One end of the calcium carbide furnace is connected with one end of the purification component, one end of the purification component is connected with the inlet of the clean gas blower, the outlet of the clean gas blower is connected with one end of the gas main, the gas main is connected with one end of the gas branch pipe, and the other end of the gas branch pipe is connected with the other end of the calcium carbide furnace, so as to control the pressure of the gas main.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbide furnaces, in particular to a gas balance and voltage stabilization system for a calcium carbide furnace. Background Art

[0002] The normal temperature of the furnace gas produced by the closed calcium carbide furnace is below 900℃. The hot furnace gas passes through the water cooling pipe and the temperature drops to 600℃. The cooled furnace gas of the calcium carbide furnace is cooled, settled, and tar is captured in the sedimentation bin, and the furnace gas temperature is reduced to below 300℃ to remove large particles of smoke. Next, the rough gas fan sends the furnace gas with a temperature below 300℃ to the bag bin for further dust collection. After dust collection, the flue gas temperature is ≤150℃, and then the clean gas fan directly sends the furnace gas to the gas main and enters the dry gas cabinet or releases it after purification.

[0003] However, after the calcium carbide furnace gas passes through the purification system, it is sent into the gas main. There are difficulties in controlling the pressure of the gas main and surging of the purification fan due to reasons such as collapse of the calcium carbide furnace and pressure fluctuations in the gas pipeline network, which increases the difficulty of operation and the load on the fan, affecting safe production.

[0004] Therefore, a calcium carbide furnace gas balance and pressure stabilization system is provided to solve the problems raised in the above background technology. Utility Model Content

[0005] The technical problem solved by the utility model is how to control the pressure of the gas main.

[0006] The technical solution of the utility model to solve the above-mentioned technical problems is as follows: a calcium carbide furnace gas balance and pressure stabilization system, comprising a calcium carbide furnace, a purification component, a clean gas blower, a gas main and a gas branch pipe, one end of the calcium carbide furnace is connected to one end of the purification component, the other end of the purification component is connected to the inlet of the clean gas blower, the outlet of the clean gas blower is connected to one end of the gas main, the middle part of the gas main is connected to one end of the gas branch pipe, and the other end of the gas branch pipe is connected to the other end of the calcium carbide furnace.

[0007] The beneficial effect of the utility model is that the furnace gas in the calcium carbide furnace can be discharged from the clean gas blower to the gas main pipe and enter the dry gas holder after being purified by the purification component through the first pipeline, or it can be discharged to the calcium carbide furnace through the gas branch pipe to form a circulation purification. The staff can adjust the opening of the valve on the gas branch pipe by observing the pressure of the furnace gas in the calcium carbide furnace, thereby realizing the control of the gas main pipe pressure and reducing the amplitude of the gas main pipe pressure fluctuation.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the purification component includes a cooling bin, a rough air fan, a bag bin, a first pipe, a second pipe, a third pipe and a fourth pipe, one end of the calcium carbide furnace is connected to one end of the first pipe, the other end of the first pipe is connected to one end of the cooling bin, the other end of the cooling bin is connected to one end of the second pipe, the other end of the second pipe is connected to the inlet of the rough air fan, the outlet of the rough air fan is connected to one end of the third pipe, the other end of the third pipe is connected to one end of the bag bin, the other end of the bag bin is connected to one end of the fourth pipe, and the other end of the fourth pipe is connected to the inlet of the clean air fan.

[0010] The beneficial effect of adopting the above further scheme is that the furnace gas in the calcium carbide furnace is discharged to the cooling bin through the first pipe to be cooled and large particles of smoke are removed. The cooled furnace gas is discharged to the inlet of the rough gas fan through the second pipe, and the outlet of the rough gas fan discharges the cooled furnace gas to the bag bin through the third pipe for further dust removal, and the furnace gas after further dust removal is discharged to the clean gas fan through the fourth pipe.

[0011] Furthermore, it also includes a first pressure gauge and a second pressure gauge. The first pressure gauge is installed on the calcium carbide furnace, and the second pressure gauge is installed on the third pipeline.

[0012] The beneficial effect of adopting the above further scheme is that the staff can adjust the opening of the valve on the gas branch pipe by observing the furnace pressure of the calcium carbide furnace and the pressure of the third pipeline on the first pressure gauge and the second pressure gauge.

[0013] Furthermore, a first gate valve, an electric regulating valve, a pneumatic shut-off valve and a second gate valve are sequentially installed at one end of the gas branch pipe.

[0014] The beneficial effect of adopting the above further scheme is that the staff adjusts the first gate valve, pneumatic shut-off valve, second gate valve and electric regulating valve in turn according to the furnace pressure, the pressure of the third pipeline and the CO and O2 content of the furnace gas in the gas main until the set value is reached and the adjustment is stopped after the calcium carbide furnace is in a stable working state.

[0015] Furthermore, it also includes a third pressure gauge and a thermometer, which are installed on the gas branch pipe at intervals and are located between the electric regulating valve and the pneumatic shut-off valve.

[0016] The beneficial effect of adopting the above further solution is that the staff can observe the pressure and temperature of the furnace gas in the gas branch pipe through the third pressure gauge and the thermometer.

[0017] Furthermore, it also includes a release pipe, one end of which is connected to the other end of the gas main.

[0018] The beneficial effect of adopting the above further solution is that the substandard gas discharged by the clean air blower can be discharged to the outside through the discharge pipe to ensure the safety of the system.

[0019] Furthermore, the gas branch pipe also includes a nitrogen inlet pipe and a nitrogen outlet pipe, one end of the nitrogen inlet pipe and one end of the nitrogen outlet pipe are both connected to the gas branch pipe and are located between the electric regulating valve and the pneumatic shut-off valve, and the other end of the nitrogen outlet pipe is connected to the release pipe.

[0020] The beneficial effect of adopting the above further solution is that the gas branch pipe must be nitrogen-filled before operation. Nitrogen enters through the nitrogen inlet pipe and is discharged to the outside through the nitrogen outlet pipe and the venting pipe.

[0021] Furthermore, it also includes a hydrogen and oxygen analyzer, which is installed on the gas main near the outlet of the clean air blower, and the hydrogen and oxygen analyzer is located between the clean air blower and the gas branch pipe.

[0022] The beneficial effect of adopting the above further scheme is that when the hydrogen-oxygen analyzer detects that the CO and O2 in the furnace gas in the gas main have reached the set value, the staff can adjust the opening of the valve on the gas branch pipe.

[0023] Furthermore, it also includes a cooling device, which includes a cooling flue base and a cooling flue, the other end of the gas branch pipe is connected to one side of the cooling flue, one end of the calcium carbide furnace is connected to one end of the cooling flue base, the other end of the cooling flue base is connected to one end of the cooling flue, and the other end of the cooling flue is connected to one end of the first pipeline.

[0024] The beneficial effect of adopting the above further solution is that the furnace gas discharged from the gas branch pipe is cooled through the cooling flue base and the cooling flue.

[0025] Furthermore, a water inlet and a water outlet are provided on one side of the cooling flue base, and a water trough is provided on the inner wall of the cooling flue base, and the water inlet and the water outlet are both connected to the water trough.

[0026] The beneficial effect of adopting the above further solution is that the water inlet and the water outlet in the cooling flue base provide circulating water flow to the water tank, which can reduce the temperature of the furnace gas in the cooling flue. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a flow chart of the gas balance and voltage stabilization system for calcium carbide furnace of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the cooling device of the utility model;

[0029] Figure 3 It is a schematic diagram of the internal structure of the cooling device of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Calcium carbide furnace; 2. First pipeline; 3. Purification component; 301. Cooling bin; 302. Rough air fan; 303. Bag bin; 304. Second pipeline; 305. Third pipeline; 306. Fourth pipeline; 4. Clean air fan; 5. Gas main; 6. Gas branch pipe; 601. First gate valve; 602. Second gate valve; 603. Electric regulating valve; 604. Pneumatic shut-off valve; 605. Nitrogen inlet pipe; 606. Nitrogen outlet pipe; 607. Nitrogen inlet valve; 608. Nitrogen outlet valve; 609. Third pressure gauge; 610. Thermometer; 7. First pressure gauge; 8. Second pressure gauge; 9. Hydrogen and oxygen analyzer; 10. Cooling equipment; 101. Cooling flue base; 1011. Water inlet; 1012. Water outlet; 102. Cooling flue; 103. Connecting pipe. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] like Figure 1-Figure 3 As shown, this embodiment provides a calcium carbide furnace gas balance and pressure stabilization system, including a calcium carbide furnace 1, a purification component 3, a clean air blower 4, a gas main pipe 5 and a gas branch pipe 6, one end of the calcium carbide furnace 1 is connected to one end of the first pipeline 2, the other end of the first pipeline 2 is connected to one end of the purification component 3, one end of the purification component 3 is connected to the inlet of the clean air blower 4, the outlet of the clean air blower 4 is connected to one end of the gas main pipe 5, the gas main pipe 5 is connected to one end of the gas branch pipe 6, and the other end of the gas branch pipe 6 is connected to the other end of the calcium carbide furnace 1.

[0034] After the furnace gas in the calcium carbide furnace 1 is purified by the purification component 3 through the first pipeline 2, it can be discharged from the clean air blower 4 to the gas main 5 and enter the dry gas holder, or it can be discharged to the calcium carbide furnace 1 through the gas branch pipe 6 to form a circulation purification. The staff observes the pressure of the furnace gas in the calcium carbide furnace 1 and adjusts the opening of the valve on the gas branch pipe 6, thereby controlling the pressure of the gas main 5 and reducing the amplitude of the pressure fluctuation of the gas main 5.

[0035] Specifically, the staff also comprehensively adjusts the opening of the valve on the gas branch pipe 6 by the pressure of the pipeline in the purification component 3 and the pressure of the furnace gas in the calcium carbide furnace 1.

[0036] Among them, the gas main pipe 5 and the gas branch pipe 6 are installed in parallel between the clean gas blower 4 and the calcium carbide furnace 1.

[0037] On the basis of the above scheme, the purification component 3 includes a cooling bin 301, a rough air fan 302, a bag bin 303, a first pipe 2, a second pipe 304, a third pipe 305 and a fourth pipe 306, one end of the calcium carbide furnace 1 is connected to one end of the first pipe 2, the other end of the first pipe 2 is connected to one end of the cooling bin 301, the other end of the cooling bin 301 is connected to one end of the second pipe 304, the other end of the second pipe 304 is connected to the inlet of the rough air fan 302, the outlet of the rough air fan 302 is connected to one end of the third pipe 305, the other end of the third pipe 305 is connected to one end of the bag bin 303, the other end of the bag bin 303 is connected to one end of the fourth pipe 306, and the other end of the fourth pipe 306 is connected to the inlet of the clean air fan 4.

[0038] The furnace gas in the calcium carbide furnace 1 is discharged to the cooling bin 301 through the first pipe 2 for cooling and removal of large particles of smoke. The cooled furnace gas is discharged to the inlet of the rough gas fan 302 through the second pipe 304. The outlet of the rough gas fan 302 discharges the cooled furnace gas to the bag bin 303 through the third pipe 305 for further dust removal. The further dust-removed furnace gas is discharged to the clean gas fan 4 through the fourth pipe 306.

[0039] Specifically, the second pipeline 304 , the third pipeline 305 , and the fourth pipeline 306 are all provided with expansion valves, which are beneficial to improving the service life of the second pipeline 304 , the third pipeline 305 , and the fourth pipeline 306 .

[0040] Optionally, multiple cooling bins 301 and multiple bag bins 303 may be provided to purify the furnace gas, and the multiple cooling bins 301 and multiple bag bins 303 may be installed in series between the calcium carbide furnace 1 and the clean air blower 4 .

[0041] On the basis of the above scheme, it further includes a first pressure gauge 7 and a second pressure gauge 8 . The first pressure gauge 7 is installed on the calcium carbide furnace 1 , and the second pressure gauge 8 is installed on the third pipeline 305 .

[0042] The staff can adjust the opening of the valve on the gas branch pipe 6 by observing the furnace pressure of the calcium carbide furnace 1 and the pressure of the third pipeline 305 on the first pressure gauge 7 and the second pressure gauge 8.

[0043] On the basis of the above solution, one end of the gas branch pipe 6 is sequentially installed with a first gate valve 601 , an electric regulating valve 603 , a pneumatic shut-off valve 604 and a second gate valve 602 .

[0044] The staff adjusts the first gate valve 601, the pneumatic shut-off valve 604, the second gate valve 602 and the electric regulating valve 603 in turn according to the furnace pressure, the pressure of the third pipeline 305 and the CO and O2 content of the furnace gas in the gas main 5 until the set values ​​are reached and the adjustment is stopped when the calcium carbide furnace 1 is in a stable working state.

[0045] Specifically, an expansion valve is provided at one end of the gas branch pipe 6 close to the gas main pipe 5 to increase the service life of the gas branch pipe 6 .

[0046] Among them, when the calcium carbide furnace 1 has other operations, the staff closes the electric regulating valve 603 at an opening of 5%. After the electric regulating valve 603 is completely closed, the pneumatic shut-off valve 604 is closed to allow the calcium carbide furnace 1 to perform other operations.

[0047] In addition, the system further includes a controller, which forms an interlocking control with the electric regulating valve 603 and the pneumatic shut-off valve 604 .

[0048] When the furnace pressure of the calcium carbide furnace 1 is less than -150pa, the electric regulating valve 603 and the pneumatic shut-off valve 604 are interlocked and closed, and the gas branch pipe 6 stops being used;

[0049] When the pressure of the third pipeline 305 is less than 1 KPa, the electric regulating valve 603 and the pneumatic shut-off valve 604 are interlocked and closed, and the gas branch pipe 6 stops being used.

[0050] On the basis of the above scheme, a third pressure gauge 609 and a thermometer 610 are further included. The third pressure gauge 609 and the thermometer 610 are installed on the gas branch pipe 6 at intervals and are located between the electric regulating valve 603 and the pneumatic shut-off valve 604 .

[0051] The staff can observe the pressure and temperature of the furnace gas in the gas branch pipe 6 through the third pressure gauge 609 and the thermometer 610 .

[0052] Specifically, the third pressure gauge 609 is a remote pressure gauge, and the thermometer 610 is a remote thermometer. The staff can monitor the normal flow of gas in the gas branch pipe 6 and whether the entire system is running normally and smoothly through the third pressure gauge 609 and the thermometer 610.

[0053] Among them, a field pressure gauge 611 is also provided on the gas branch pipe 6, which can facilitate the staff to monitor the pressure of the gas branch pipe 6 on site and improve the stability of the system.

[0054] On the basis of the above solution, a release pipe 11 is further included, one end of which is connected to the other end of the gas main 5 .

[0055] The substandard gas discharged by the clean air blower 4 can be discharged to the outside through the discharge pipe 11 to ensure the safety of the system.

[0056] Specifically, a relief valve is provided on the relief pipe 11 .

[0057] When the pressure of the entire system is abnormal, the staff can open the relief valve to discharge the substandard gas or excess gas into the atmosphere through the relief pipe 11 for combustion.

[0058] On the basis of the above scheme, the gas branch pipe 6 also includes a nitrogen inlet pipe 605 and a nitrogen outlet pipe 606, one end of the nitrogen inlet pipe 605 and one end of the nitrogen outlet pipe 606 are both connected to the gas branch pipe 6 and are located between the electric regulating valve 603 and the pneumatic shut-off valve 604, and the other end of the nitrogen outlet pipe 606 is connected to the release pipe 11.

[0059] Before the operation of the gas branch pipe 6, nitrogen must be placed. Nitrogen enters through the nitrogen inlet pipe 605 and is discharged to the outside through the nitrogen outlet pipe 606 and the venting pipe 11.

[0060] Specifically, it also includes a nitrogen inlet valve 607 and a nitrogen outlet valve 608 . The nitrogen inlet valve 607 is installed on the nitrogen inlet pipe 605 , and the nitrogen outlet valve 608 is installed on the nitrogen outlet pipe 606 .

[0061] On the basis of the above scheme, a hydrogen-oxygen analyzer 9 is further included. The hydrogen-oxygen analyzer 9 is installed on the gas main pipe 5 near the outlet of the clean air blower 4 , and the hydrogen-oxygen analyzer 9 is located between the clean air blower 4 and the gas branch pipe 6 .

[0062] When the hydrogen-oxygen analyzer 9 detects that the CO and O2 in the furnace gas in the gas main pipe 5 reach the set value, the staff can adjust the opening of the valve on the gas branch pipe 6.

[0063] Specifically, after the gas branch pipe 6 is nitrogen-substituted, the calcium carbide furnace 1 is lowered to the first gear. The staff first opens the second gate valve 602 to the set opening value, opens the first gate valve 601, and then sets the opening value of the electric regulating valve 603 to the set opening value, and then raises the gear of the calcium carbide furnace 1 to the set gear value. At this time, the CO and O2 content values ​​in the gas branch pipe 6 are observed by the hydrogen and oxygen analyzer 9.

[0064] When the hydrogen-oxygen analyzer 9 detects that the CO and O2 in the furnace gas in the gas main 5 reach the set value, the staff operates to adjust the frequency of the clean air fan 4 and the opening of the vent valve, and after the furnace pressure of the calcium carbide furnace 1 and the pressure of the third pipeline 305 reach the set value, the pneumatic shut-off valve 604 can be opened.

[0065] When the pneumatic shut-off valve 604 is fully opened, the electric regulating valve 603 can be opened to a set value until the gas branch pipe 6 and the calcium carbide furnace 1 form a purification cycle.

[0066] After the gas branch pipe 6 and the calcium carbide furnace 1 form a purification cycle, the staff will adjust the opening of the rough air fan 302, the clean air fan 4 and the vent valve according to the furnace pressure of the calcium carbide furnace 1 and the pressure of the third pipeline 305, and adjust them within the set value according to the furnace pressure of the calcium carbide furnace 1 and the pressure of the third pipeline 305.

[0067] After the furnace pressure of the calcium carbide furnace 1 has been stable for five minutes, the staff gradually opens the electric regulating valve 603 to the set opening value at an opening of 3%, and adjusts the frequency of the clean air fan 4 and the opening of the vent valve in time according to the furnace pressure of the calcium carbide furnace 1 and the pressure of the third pipeline 305, so that the calcium carbide furnace 1 is in a stable state and the pressure of the gas main 5 is controlled.

[0068] On the basis of the above scheme, it also includes a cooling device 10, which includes a cooling flue base 101 and a cooling flue 102. The other end of the gas branch pipe 6 is connected to one side of the cooling flue 102, one end of the calcium carbide furnace 1 is connected to one end of the cooling flue base 101, the other end of the cooling flue base 101 is connected to one end of the cooling flue 102, and the other end of the cooling flue 102 is connected to one end of the first pipeline 2.

[0069] The furnace gas discharged from the gas branch pipe 6 is cooled through the cooling flue base 101 and the cooling flue 102 .

[0070] Specifically, in this embodiment, the other end of the gas branch pipe 6 is connected to one end of three connecting pipes 103 at intervals, the other ends of the three connecting pipes 103 are all connected to one side of the cooling flue 102, and the three connecting pipes 103 are parallel to each other.

[0071] Among them, different numbers of connecting pipes 103 can be set according to actual conditions. In this way, the furnace gas in the gas branch pipe 6 can enter the cooling flue 102 in a tangential manner through the connecting pipe 103. Since the tangential entry increases the centrifugal force to form the effect of high-speed operation of the furnace gas, the circulation efficiency of the furnace gas in the gas branch pipe 6 entering the calcium carbide furnace 1 can be increased.

[0072] In addition, a water tank may be provided on the first pipe 2 to cool the furnace gas entering the first pipe 2 again.

[0073] On the basis of the above scheme, one side of the cooling flue base 101 has a water inlet 1011 and a water outlet 1012, and the inner wall of the cooling flue base 101 has a water trough, and the water inlet 1011 and the water outlet 1012 are both connected to the water trough.

[0074] The water inlet 1011 and the water outlet 1012 in the cooling flue base 101 provide circulating water flow to the water tank, which can reduce the temperature of the furnace gas in the cooling flue 102.

[0075] Specifically, the water tanks are all annular water tanks arranged along the circumference of the inner wall of the cooling flue base 101.

[0076] In this embodiment, the cooling flue base 101 is a truncated cone with a small upper diameter and a large lower diameter. The cooling flue base 101 can also be set to a polygonal three-dimensional shape, such as a cylinder or a cube, according to actual needs.

[0077] In addition, in this embodiment, the water inlet 1011 is arranged at the bottom of one side of the cooling flue base 101 , and the water outlet 1012 is arranged at the top of one side of the cooling flue base 101 .

[0078] Optionally, the water tank is a spiral water tank.

[0079] In this embodiment, when in use, first, the coal gas branch pipe 6 is replaced with nitrogen. First, the first gate valve 601 and the second gate valve 602 are closed, and then the electric regulating valve 603 and the pneumatic shut-off valve 604 are opened respectively; then, the nitrogen inlet valve 607 and the nitrogen outlet valve 608 are opened to replace the coal gas branch pipe 6, and the replaced gas is discharged to the atmosphere through the nitrogen outlet pipe 606 and the venting pipe 11 in turn.

[0080] After the gas branch pipe 6 has been replaced for 30 minutes, the staff takes samples at the sampling port for analysis. When O2 in the gas branch pipe 6 is ≤1%, the gas branch pipe 6 is qualified for nitrogen replacement. Then the staff closes the nitrogen inlet valve 607, the nitrogen outlet valve 608, the electric regulating valve 603 and the pneumatic shut-off valve 604, and puts the gas branch pipe 6 into use.

[0081] Secondly, after the nitrogen replacement of the gas branch pipe 6 is qualified, the staff lowers the calcium carbide furnace 1 to the first gear, and first opens the second gate valve 602 to the set opening value, opens the first gate valve 601, and then sets the opening value of the electric regulating valve 603 to the opening value, and then raises the gear of the calcium carbide furnace 1 to the set gear value. At this time, the CO and O2 content values ​​in the gas branch pipe 6 are observed by the hydrogen and oxygen analyzer 9.

[0082] When the hydrogen-oxygen analyzer 9 detects that the CO and O2 in the furnace gas in the gas main 5 reach the set value, the staff operates to adjust the frequency of the clean air blower 4 and the opening of the vent valve, and after the furnace pressure of the calcium carbide furnace 1 and the pressure of the third pipeline 305 reach the set value, open the pneumatic shut-off valve 604. When the pneumatic shut-off valve 604 is fully opened, the electric regulating valve 603 is opened to the set value until the gas branch pipe 6 and the calcium carbide furnace 1 form a purification cycle.

[0083] After the gas branch pipe 6 and the calcium carbide furnace 1 form a purification cycle, the staff will adjust the opening of the rough air fan 302, the clean air fan 4 and the vent valve according to the furnace pressure of the calcium carbide furnace 1 and the pressure of the third pipeline 305, and adjust them within the set value according to the furnace pressure of the calcium carbide furnace 1 and the pressure of the third pipeline 305.

[0084] Finally, after the furnace pressure of the calcium carbide furnace 1 has been stable for five minutes, the staff gradually opens the electric regulating valve 603 to the set opening value at an opening of 3%, and adjusts the frequency of the clean air fan 4 and the opening of the vent valve in time according to the furnace pressure of the calcium carbide furnace 1 and the pressure of the third pipeline 305, so that the calcium carbide furnace 1 is in a stable state and the pressure of the gas main 5 is controlled.

[0085] In the description of the present invention, it should be understood that the terms "bottom", "inner", "outer", "axial", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0090] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A calcium carbide furnace gas balance and pressure stabilization system, characterized in that: The invention comprises a calcium carbide furnace (1), a purification component (3), a clean air blower (4), a gas main pipe (5) and a gas branch pipe (6), wherein one end of the calcium carbide furnace (1) is connected to one end of the purification component (3), the other end of the purification component (3) is connected to the inlet of the clean air blower (4), the outlet of the clean air blower (4) is connected to one end of the gas main pipe (5), the middle part of the gas main pipe (5) is connected to one end of the gas branch pipe (6), and the other end of the gas branch pipe (6) is connected to the other end of the calcium carbide furnace (1).

2. A calcium carbide furnace gas balance and pressure stabilization system according to claim 1, characterized in that: The purification component (3) comprises a cooling bin (301), a rough air blower (302), a bag bin (303), a first pipe (2), a second pipe (304), a third pipe (305) and a fourth pipe (306); one end of the calcium carbide furnace (1) is connected to one end of the first pipe (2); the other end of the first pipe (2) is connected to one end of the cooling bin (301); the other end of the cooling bin (301) is connected to one end of the second pipe (304); the other end of the second pipe (304) is connected to an inlet of the rough air blower (302); the outlet of the rough air blower (302) is connected to one end of the third pipe (305); the other end of the third pipe (305) is connected to one end of the bag bin (303); the other end of the bag bin (303) is connected to one end of the fourth pipe (306); and the other end of the fourth pipe (306) is connected to an inlet of the purification blower (4).

3. A calcium carbide furnace gas balance and pressure stabilization system according to claim 2, characterized in that: It also includes a first pressure gauge (7) and a second pressure gauge (8). The first pressure gauge (7) is installed on the calcium carbide furnace (1), and the second pressure gauge (8) is installed on the third pipeline (305).

4. A calcium carbide furnace gas balance and pressure stabilization system according to claim 2, characterized in that: A first gate valve (601), an electric regulating valve (603), a pneumatic shut-off valve (604) and a second gate valve (602) are sequentially installed at one end of the gas branch pipe (6).

5. A calcium carbide furnace gas balance and pressure stabilization system according to claim 4, characterized in that: It also includes a third pressure gauge (609) and a thermometer (610), wherein the third pressure gauge (609) and the thermometer (610) are installed on the gas branch pipe (6) at intervals and are located between the electric regulating valve (603) and the pneumatic shut-off valve (604).

6. A calcium carbide furnace gas balance and pressure stabilization system according to claim 4, characterized in that: It also comprises a venting pipe (11), one end of which is in communication with the other end of the gas main pipe (5).

7. A calcium carbide furnace gas balance and pressure stabilization system according to claim 6, characterized in that: The gas branch pipe (6) further comprises a nitrogen inlet pipe (605) and a nitrogen outlet pipe (606); one end of the nitrogen inlet pipe (605) and one end of the nitrogen outlet pipe (606) are both in communication with the gas branch pipe (6) and are located between the electric regulating valve (603) and the pneumatic shut-off valve (604); the other end of the nitrogen outlet pipe (606) is in communication with the venting pipe (11).

8. A calcium carbide furnace gas balance and pressure stabilization system according to any one of claims 1 to 7, characterized in that: It also comprises a hydrogen-oxygen analyzer (9), which is installed on the gas main pipe (5) near the outlet of the clean air blower (4), and the hydrogen-oxygen analyzer (9) is located between the clean air blower (4) and the gas branch pipe (6).

9. A calcium carbide furnace gas balance and pressure stabilization system according to any one of claims 2 to 7, characterized in that: It also includes a cooling device (10), the cooling device (10) includes a cooling flue base (101) and a cooling flue (102), the other end of the gas branch pipe (6) is connected to one side of the cooling flue (102), one end of the calcium carbide furnace (1) is connected to one end of the cooling flue base (101), the other end of the cooling flue base (101) is connected to one end of the cooling flue (102), and the other end of the cooling flue (102) is connected to one end of the first pipeline (2).

10. A calcium carbide furnace gas balance and pressure stabilization system according to claim 9, characterized in that: One side of the cooling flue base (101) is provided with a water inlet (1011) and a water outlet (1012); the inner wall of the cooling flue base (101) is provided with a water trough; the water inlet (1011) and the water outlet (1012) are both connected to the water trough.

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