Automatic pressure relief device of electric furnace for zinc smelting

Abstract

The utility model discloses an automatic pressure relief device of an electric furnace for zinc smelting, and relates to the technical field of accessories for electric smelting furnaces. The gas collecting device comprises an adjusting pressure relief assembly and a gas collecting assembly, the adjusting pressure relief assembly comprises an adjusting square pipe, a valve block, a set of adjusting springs and an adjusting handle, the valve block is slidably connected in the adjusting square pipe in a sleeved mode, and the adjusting spring set is fixedly connected to a jacking block on one side of the valve block. The adjusting connecting plate on one side of the adjusting spring is slidably sleeved with the adjusting cylinder, an adjusting screw is fixedly arranged on one side of the adjusting connecting plate, the adjusting screw is sleeved with the adjusting handle in a threaded mode, exhaust holes are formed in the four side faces of the adjusting square pipe, and the gas collecting assembly is installed on the periphery of the outer side of the adjusting square pipe. The adjusting connecting plate compresses the adjusting spring by rotating the adjusting handle, so that the tension of the adjusting spring is changed, and the pressure relief threshold value is adjusted; a gas collecting sleeve is fixedly connected to the periphery of the outer side of an adjusting square pipe in a sleeved mode, a gas blocking taper pipe is fixedly connected into a speed reducing pipe on one side of the gas collecting sleeve in a sleeved mode to decelerate gas, and damage caused by pressure relief gas to personnel or equipment is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of accessories for smelting electric furnaces, in particular to an automatic pressure relief device for an electric furnace used for zinc smelting. Background Art

[0002] When metallic zinc is smelted in an electric furnace, the air pressure inside the furnace increases, and waste gas is generated that needs to be discharged to prevent oxygen from not being able to enter normally and affecting the smelting effect. Therefore, a pressure relief exhaust device is required in the furnace body of the electric furnace to discharge the internal high-pressure gas when the air pressure in the furnace reaches a threshold. When smelting zinc, the amount of smelting zinc varies, and the amount of oxygen required to be introduced varies, which will also cause different thresholds for the generation of internal high-pressure gas. Therefore, a pressure relief device with a settable threshold is required. In addition, the gas discharged through the pressure relief device is high-speed and high-temperature, which can easily cause harm to surrounding personnel or damage equipment.

[0003] To this end, we provide an automatic pressure relief device for an electric furnace for zinc smelting to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic pressure relief device for an electric furnace for zinc smelting, which is achieved by fixing a group of adjusting springs at the rear of a top connection block, fixing an adjusting connecting plate at one end of the adjusting spring, fixing an adjusting screw at one end of the adjusting connecting plate, threading an adjusting handle at one end of the adjusting screw passing through an adjusting cylinder, rotating the adjusting handle to cause the adjusting connecting plate to compress the adjusting spring, thereby changing the tension of the adjusting spring, and adjusting the force most required to push the valve block, thereby achieving an adjustment of the pressure relief threshold; fixing a gas collecting sleeve on the outer periphery of the adjusting square tube, connecting a speed reducing tube on one side of the gas collecting sleeve, and using a gas blocking cone tube fixedly connected in the speed reducing tube to slow down the high-temperature and high-speed gas, thereby preventing the pressure relief gas from causing damage to personnel or equipment.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model discloses an automatic pressure relief device for an electric furnace for zinc smelting, comprising a pressure regulating and relief assembly and a gas collecting assembly, wherein the pressure regulating and relief assembly comprises a regulating square tube, a valve block, a group of regulating springs and an regulating handle, one end of the regulating square tube is connected to the exhaust port of the electric furnace through a flange, the valve block is slidably sleeved in the regulating square tube, a top connecting block is fixedly provided on the side of the valve block away from the flange connection end of the regulating square tube, the regulating spring group is fixedly connected to the end of the top connecting block away from the valve block, an regulating connecting plate is fixedly connected on the side of the regulating spring away from the top connecting block, an regulating cylinder is fixedly provided at one end of the regulating square tube away from the flange connection end, the regulating cylinder is closed at one end of the regulating square tube, the regulating connecting plate is slidably sleeved in the regulating cylinder, an regulating screw is fixedly provided on the side of the regulating connecting plate away from the regulating spring, the regulating screw passes through the closed end of the regulating cylinder, the regulating handle is rotatably mounted on the outside of the closed end of the regulating cylinder, the regulating handle is threadedly sleeved on the regulating screw, exhaust holes are provided on four sides of the regulating square tube, and the gas collecting assembly is mounted on the outer peripheral body of the regulating square tube.

[0007] The utility model is further configured such that the exhaust hole gradually opens larger from the flange connection end of the regulating square tube to the regulating cylinder.

[0008] The utility model is further configured such that a return spring is sleeved between the adjustment connecting plate and the closed end of the adjustment cylinder.

[0009] The utility model is further configured such that the gas collecting assembly includes a gas collecting sleeve and a speed reducing tube. The gas collecting sleeve is fixedly sleeved on the outside of the regulating square tube body, and the speed reducing tube is connected to the gas collecting sleeve through a flange.

[0010] The utility model is further configured such that two air-blocking cone tubes are fixedly installed in the deceleration tube, the two air-blocking cone tubes are respectively fixedly installed at both ends of the deceleration tube, and the convergence ports of the two air-blocking cone tubes face the flange connection end in the deceleration tube.

[0011] The utility model is further configured such that a ventilation cone is fixedly installed in the middle section of the deceleration pipe, the convergence port of the ventilation cone faces the flange connection end in the deceleration pipe, and a group of ventilation holes are opened in the circumferential direction of the cone surface of the ventilation cone.

[0012] The utility model is further configured such that one end of the speed reducing tube away from the flange connection end is fixedly connected with a sound whistle tube, and the air inlet end of the sound whistle tube is communicated with the air outlet end of the speed reducing tube.

[0013] The utility model has the following beneficial effects:

[0014] The utility model is implemented by fixing a group of adjusting springs at the rear of the top connection block, fixing an adjusting connecting plate at one end of the adjusting spring, fixing an adjusting screw at one end of the adjusting connecting plate, threading an adjusting handle at one end of the adjusting screw that passes through the adjusting cylinder, and rotating the adjusting handle to cause the adjusting connecting plate to compress the adjusting spring, thereby changing the tension of the adjusting spring, thereby adjusting the force most required for the valve block to be pushed, thereby achieving adjustment of the pressure relief threshold.

[0015] The utility model fixes a gas collecting sleeve on the outer periphery of an adjusting square tube, connects a speed reducing tube on one side of the gas collecting sleeve, and utilizes a gas blocking cone tube fixedly sleeved in the speed reducing tube to allow the high-temperature and high-speed gas to reflux and counterflow with the incoming gas, thereby slowing down the high-temperature and high-speed gas and preventing the decompression gas from causing damage to personnel or equipment.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The figure is a schematic diagram of the structure of an automatic pressure relief device for an electric furnace used for zinc smelting.

[0019] Figure 2 This is an exploded diagram of the regulating pressure relief assembly.

[0020] Figure 3 A side cross-sectional view of the adjustment assembly.

[0021] Figure 4 It is an exploded schematic diagram of the present utility model.

[0022] Figure 5 This is a schematic diagram of the decomposition of the reducer tube.

[0023] Figure 6 This is a side sectional view of the reducer tube.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1-adjusting pressure relief assembly, 101-adjusting square tube, 101a-adjusting cylinder, 101b-exhaust hole, 102-valve block, 102a-top connection block, 102b-adjusting connecting plate, 102b-1-reset spring, 102c-adjusting screw, 103-adjusting spring, 104-adjusting handle, 2-gas collecting assembly, 201-gas collecting sleeve, 202-deceleration tube, 202a-air blocking cone tube, 202b-vent cone tube, 202b-1-vent, 203-pronunciation whistle tube. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0027] See also Figures 1 to 6 The utility model is an automatic pressure relief device for an electric furnace for zinc smelting, comprising a pressure regulating and relief assembly 1 and a gas collecting assembly 2. The pressure regulating and relief assembly 1 comprises a regulating square tube 101, a valve block 102, a group of regulating springs 103 and an regulating handle 104. A group of regulating springs 103 are fixedly connected to the rear of the top connection block 102a, one end of the regulating spring 103 is fixedly connected to an regulating connecting plate 102b, an regulating screw 102c is fixedly provided at one end of the regulating connecting plate 102b, and one end of the regulating screw 102c passes through the regulating tube 101a and is threadedly sleeved with the regulating handle 104. Rotating the regulating handle 104 causes the regulating connecting plate 102b to compress the regulating spring 103, thereby changing the tension of the regulating spring 103 to adjust the force required to push the valve block 102, thereby achieving the regulation of the pressure relief threshold.

[0028] Specifically, one end of the regulating square tube 101 is connected to the exhaust port of the electric furnace through a flange, and the valve block 102 is slidably sleeved in the regulating square tube 101. A top connection block 102a is fixedly provided on the side of the valve block 102 away from the flange connection end of the regulating square tube 101. An adjusting spring 103 group is fixedly connected to the top connection block 102a away from the end of the valve block 102. An adjusting connecting plate 102b is fixedly connected to the side of the adjusting spring 103 away from the top connection block 102a. An adjusting cylinder 101a is fixedly provided on the end of the regulating square tube 101 away from the flange connection end. One end of the adjusting square tube 101 is closed, and the adjusting connecting plate 102b is slidably sleeved in the adjusting cylinder 101a. An adjusting screw 102c is fixed to the side of the adjusting connecting plate 102b away from the adjusting spring 103. The adjusting screw 102c passes through the closed end of the adjusting cylinder 101a, and the adjusting handle 104 is rotatably installed on the outside of the closed end of the adjusting cylinder 101a. The adjusting handle 104 is threadedly sleeved on the adjusting screw 102c. Exhaust holes 101b are provided on all four sides of the adjusting square tube 101, and the gas collecting component 2 is installed on the outer periphery of the adjusting square tube 101.

[0029] Furthermore, the exhaust hole 101b gradually opens larger from the flange connection end of the regulating square tube 101 to the regulating cylinder 101a, so that the force of the high-pressure gas exceeding the set threshold pushing the valve block 102 gradually increases, preventing the high-pressure gas from being discharged explosively from the exhaust hole 101b.

[0030] Furthermore, a return spring 102b-1 is sleeved between the adjustment plate 102b and the closed end of the adjustment tube 101a, and is used to press the adjustment plate 102b tightly into the adjustment tube 101a.

[0031] The operation process of this embodiment is as follows:

[0032] According to the amount of zinc smelted in the electric furnace, the adjusting handle 104 is rotated to change the adjusting plate 102b to squeeze the adjusting spring 103, so that the force required to move the valve block 102 is changed, thereby adjusting the pressure relief threshold. When the gas in the furnace reaches the threshold, the high-temperature and high-pressure gas pushes the valve block 102 to squeeze the adjusting spring 103 and move it backward, so that the high-temperature and high-pressure gas is discharged from the exhaust hole 101b opened on the side wall of the adjusting square tube 101. After the pressure relief and exhaust are completed, the adjusting spring 103 resets the front of the valve block 102. Example 2

[0033] See also Figures 1 to 6 On the basis of Example 1, the gas collecting assembly 2 includes a gas collecting sleeve 201 and a deceleration tube 202. The gas collecting sleeve 201 is fixedly sleeved on the outer periphery of the adjusting square tube 101, and the deceleration tube 202 is connected on one side of the gas collecting sleeve 201. The gas blocking cone 202a fixedly sleeved in the deceleration tube 202 is used to make the high-temperature and high-speed gas reflux and convect with the incoming gas, thereby decelerating the high-temperature and high-speed gas and preventing the depressurized gas from causing damage to personnel or equipment.

[0034] Specifically, the gas collecting sleeve 201 is fixedly sleeved on the outer side of the regulating square tube 101 , and the speed reducing tube 202 is connected to the gas collecting sleeve 201 through a flange.

[0035] Furthermore, two air-blocking cone tubes 202a are fixedly installed in the deceleration tube 202. The two air-blocking cone tubes 202a are respectively fixedly installed at both ends of the deceleration tube 202, and the convergence ports of the two air-blocking cone tubes 202a face the flange connection end of the deceleration tube 202.

[0036] Furthermore, a ventilation cone tube 202b is fixedly installed in the middle section of the deceleration tube 202, and the convergence port of the ventilation cone tube 202b is toward the flange connection end of the deceleration tube 202. A group of ventilation holes 202b-1 are opened circumferentially on the cone tube surface of the ventilation cone tube 202b. The ventilation cone tube 202b is used to divert the high-temperature and high-pressure gas entering the cone tube of the gear cone tube 202a and guide its reflux.

[0037] Furthermore, a sound whistle pipe 203 is fixedly connected to one end of the deceleration pipe 202 away from the flange connection end, and the air inlet end of the sound whistle pipe 203 is connected to the air outlet end of the deceleration pipe 202 for sounding an alarm when gas is discharged.

[0038] The operation process of this embodiment is as follows:

[0039] The high-temperature and high-pressure gas is discharged from the exhaust hole 101b of the adjusting square tube 101 into the gas collecting sleeve 201, and enters the reducing sleeve 202 from the gas collecting sleeve 201. The high-temperature and high-pressure gas is blocked by the converging conical surface of the gas blocking conical tube 202a in the reducing sleeve 202, and flows back, and a part of the gas passes through the tube opening. The backflow part of the gas is mixed with the new incoming gas, thereby reducing the speed of the subsequent gas. After the gas enters the sound whistle tube 203, the high-temperature and high-pressure gas is reduced in speed, and the sound whistle tube 203 emits sound to improve the operation of the operator.

[0040] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. An automatic pressure relief device for an electric furnace for zinc smelting, comprising a pressure regulating and relief component (1) and a gas collecting component (2), characterized in that: The regulating pressure relief assembly (1) comprises a regulating square tube (101), a valve block (102), a group of regulating springs (103) and an regulating handle (104); one end of the regulating square tube (101) is connected to the exhaust port of the electric furnace via a flange; the valve block (102) is slidably sleeved in the regulating square tube (101); a top connection block (102a) is fixedly provided on the side of the valve block (102) away from the flange connection end of the regulating square tube (101); the regulating spring (103) group is fixedly connected to the end of the top connection block (102a) away from the valve block (102); the side of the regulating spring (103) away from the top connection block (102a) is fixedly connected to an regulating connecting plate (102b); the end of the regulating square tube (101) away from the flange connection end is fixedly provided An adjusting cylinder (101a) is provided, wherein one end of the adjusting cylinder (101a) away from the adjusting square tube (101) is closed, the adjusting connecting plate (102b) is slidably sleeved in the adjusting cylinder (101a), an adjusting screw (102c) is fixedly provided on the side of the adjusting connecting plate (102b) away from the adjusting spring (103), the adjusting screw (102c) passes through the closed end of the adjusting cylinder (101a), the adjusting handle (104) is rotatably mounted on the outside of the closed end of the adjusting cylinder (101a), the adjusting handle (104) is threadedly sleeved on the adjusting screw (102c), exhaust holes (101b) are provided on four sides of the adjusting square tube (101), and the gas collecting component (2) is mounted on the outer peripheral body of the adjusting square tube (101).

2. The automatic pressure relief device for a zinc smelting electric furnace according to claim 1, characterized in that: The exhaust hole (101b) gradually opens larger from the flange connection end of the regulating square tube (101) to the regulating cylinder (101a).

3. The automatic pressure relief device for a zinc smelting electric furnace according to claim 2, characterized in that: A return spring (102b-1) is sleeved between the regulating connecting plate (102b) and the closed end of the regulating cylinder (101a).

4. The automatic pressure relief device for a zinc smelting electric furnace according to claim 1, characterized in that: The gas collection assembly (2) comprises a gas collection sleeve (201) and a speed reducing tube (202); the gas collection sleeve (201) is fixedly sleeved on the outside of the circumference of the regulating square tube (101); and the speed reducing tube (202) is connected to the gas collection sleeve (201) via a flange.

5. The automatic pressure relief device for an electric furnace for zinc smelting according to claim 4, characterized in that: Two air-blocking cone tubes (202a) are fixedly installed in the deceleration tube (202), and the two air-blocking cone tubes (202a) are respectively fixedly installed at two ends of the deceleration tube (202), with the convergence ports of the two air-blocking cone tubes (202a) facing the flange connection end in the deceleration tube.

6. The automatic pressure relief device for a zinc smelting electric furnace according to claim 5, characterized in that: A vent cone (202b) is fixedly installed in the middle section of the deceleration tube (202), the convergence port of the vent cone (202b) faces the flange connection end in the deceleration tube, and a group of vent holes (202b-1) are provided in the circumferential direction of the cone surface of the vent cone (202b).

7. The automatic pressure relief device for an electric furnace for zinc smelting according to claim 6, characterized in that: One end of the deceleration tube (202) away from the flange connection end is fixedly connected to a sound whistle tube (203), and the air inlet end of the sound whistle tube (203) is in communication with the air outlet end of the deceleration tube (202).

Images