Crust cleaning structure of hearth flame monitoring device

Abstract

The utility model discloses a crust cleaning structure of a hearth flame monitoring device. Comprising an embedded pipe which is fixed on the wall of the kiln and extends into a hearth of the kiln, an air cylinder connected with the embedded pipe, a protection pipe which is driven by the air cylinder to move forwards and backwards, a high-temperature lens arranged in the protection pipe and a camera connected with the rear end of the high-temperature lens, and an endoscopic hole is formed in the bottom of the front end of the protection pipe. A steel wire is elastically installed in the embedded pipe at the position of the maximum retreating stroke of the protection pipe, the steel wire is transversely arranged and squeezed by the bottom wall of the protection pipe, and when the protection pipe reaches the position of the maximum retreating stroke, the steel wire scrapes crust formed on the lower edge of the endoscopic hole along the bottom wall of the protection pipe. When the protection tube reaches the maximum retreating stroke, the steel wire can scrape crust formed on the lower edge of the endoscopic hole along the bottom wall of the protection tube, so that the crust can be cleaned in time, and the situation that the flame combustion state in a hearth cannot be normally monitored due to the fact that the crust shields the camera is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hearth flame monitoring device technical field, specifically is a hearth flame monitoring device's skinning cleaning structure. BACKGROUND

[0002] The kiln is as the common equipment for calcining material in the industrial production processing field, and the high-temperature (900 DEG C-1600 DEG C) and high-dust environment in the furnace are used to carry out calcining operation, usually adopts the hearth flame monitoring device to monitor the flame burning state in real time, according to the size, color of flame, to accurately judge the flame burning condition and the operation in the hearth, is the commonly used technical monitoring means.

[0003] The existing hearth flame monitoring device mainly adopts camera (industrial camera), is usually set in the front end inside the protection pipe, is driven by the cylinder and advances and retreats in the inside of the preburied pipe along the protection pipe, when reaching the maximum stroke of advance, the camera can shoot the image and video in the hearth inside through the endoscopy hole of protection pipe and preburied pipe, to monitor the flame burning state in real time.

[0004] In the actual working process, although the industrial camera can resist high temperature, but in order to prevent being damaged due to high temperature, often needs to withdraw the camera from the hearth periodically, and the outside air is blown into to achieve the purpose of cooling down. Because the camera often carries a part of high-temperature material when withdrawing from the hearth, usually forms thin and brittle skin along the endoscopy hole of protection pipe when cooling, gradually blocks the camera with time, causes the image and video blurred by the camera, so that the flame burning state cannot be monitored normally. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects and deficiencies of prior art, and provides a hearth flame monitoring device's skinning cleaning structure to realize timely cleaning skinning, avoid that the camera is blocked by skinning and cannot normally monitor the flame burning state in the hearth.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The invention discloses a soot cleaning structure of a furnace flame monitoring device, which comprises a pre-embedded tube fixed to a kiln wall and extending into a kiln chamber, a gas cylinder connected to the pre-embedded tube, a protection tube driven forward and backward by the gas cylinder, a high-temperature lens arranged inside the protection tube and a camera connected to the rear end of the high-temperature lens, and is used for monitoring the furnace flame.

[0008] Further, the bottom of the pre-embedded tube is provided with a notch at the maximum stroke of the backward movement of the protection tube.

[0009] Further, the bottom of the pre-embedded tube is provided with a notch at the maximum stroke of the backward movement of the protection tube.

[0010] Further, the steel wire transversely penetrates the notch, and hooks are integrally connected to the two ends of the steel wire, and springs are connected between the hooks on the same side and the connecting seats.

[0011] Further, the bottom of the transverse tube is provided with an air inlet for blowing external air into the inside of the pre-embedded tube to cool the scope of the front end of the high-temperature lens.

[0012] Further, the front ends of the pre-embedded tube and the protection tube are in the shape of a spherical cap.

[0013] Compared with the prior art, the invention has the following beneficial effects:

[0014] The steel wire is elastically installed at the maximum stroke of the backward movement of the protection tube and is pressed by the bottom wall of the protection tube, and when the protection tube reaches the maximum stroke of the backward movement, the steel wire can scrape off the soot formed on the lower edge of the inner viewing hole along the bottom wall of the protection tube, so that the soot can be cleaned in time, and the camera can be prevented from being blocked by the soot to normally monitor the flame burning state in the furnace chamber. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The figure is a structural schematic diagram of the invention.

[0016] Figure 2 The figure is a structural schematic diagram of the invention. Figure 1 The figure is a structural schematic diagram of the invention.

[0017] Figure 3 The figure is a structural schematic diagram of the invention in the use state. DETAILED DESCRIPTION

[0018] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of the utility model protection.

[0019] Referring to Figures 1-3 A soot cleaning structure of a hearth flame monitoring device, comprising a pre-embedded pipe 1 fixed to a kiln wall and extending into a kiln hearth, a gas cylinder 2 connected with the pre-embedded pipe 1, a protection pipe 3 driven forward and backward by the gas cylinder 2, a high-temperature lens 16 arranged inside the protection pipe 3 and a camera 15 connected with the rear end of the high-temperature lens, used for monitoring the hearth flame, the bottom of the front end of the protection pipe 3 is provided with an endoscope hole 5, and a steel wire 6 is elastically mounted at the maximum stroke of the backward movement of the protection pipe 3 inside the pre-embedded pipe 1, the steel wire 6 is arranged transversely and is pressed by the bottom wall of the protection pipe 3, and when the protection pipe 3 reaches the maximum stroke of the backward movement, the steel wire 6 scrapes off the soot formed on the lower edge of the endoscope hole 5 along the bottom wall of the protection pipe 3.

[0020] In the utility model, the bottom of the pre-embedded pipe 1 is provided with a notch 7 at the maximum stroke of the backward movement of the protection pipe.

[0021] In the utility model, the bottom of the pre-embedded pipe 1 is fixedly connected with a cross pipe 8 on both sides of the notch, both ends of the cross pipe 8 are fixedly connected with a sealing plate 9, and the inner side of the sealing plate 9 is fixedly connected with a connecting seat 10.

[0022] In the utility model, the steel wire 6 transversely penetrates the notch 7, both ends of the steel wire 6 are integrally connected with hooks 11, and the hooks 11 on the same side are connected with springs 12 between the connecting seat 10, so that the steel wire 6 is elastically mounted.

[0023] In the utility model, the bottom of the cross pipe is provided with an air inlet 13, used for blowing external air into the inside of the pre-embedded pipe 1, so as to cool the peep mirror 4 of the high-temperature lens 16 reaching the maximum stroke of the backward movement.

[0024] In the utility model, the front end of the pre-embedded pipe 1 and the protection pipe 3 are both spherical crown shapes, on the basis of ensuring that the steel wire 6 can scrape off the soot formed on the lower edge of the endoscope hole 5 along the bottom wall of the protection pipe 3, the steel wire 6 will not hinder the normal forward movement of the pre-embedded pipe 1.

[0025] The utility model will be further described below in combination with the drawings:

[0026] In the utility model, both ends of the piston rod of the gas cylinder 2 respectively extend from both ends of the cylinder barrel, and the inside of the piston rod is hollow.

[0027] The front end of the cylinder barrel of cylinder 2 is fixedly connected to the rear end of the pre-embedded pipe 1 (the end extending out of the furnace), the front end of the piston rod is fixedly connected to the rear end of the protective pipe 3, the rear end of the piston rod is fixedly connected to the housing 14, the camera 15 is set inside the housing 14 and is connected to the display screen of the monitoring center through a signal line, the high temperature lens 16 is fixedly fitted inside the piston rod, the front end of the high temperature lens 16 extends into the interior of the protective pipe 3, and the endoscope 4 at the front end of the high temperature lens 16 is located inside the endoscope hole 5.

[0028] Camera 15 captures images and videos of the furnace flames through the high-temperature lens 16 and the end view 4 at its front end, and transmits them to the display screen in the monitoring center for real-time display, thereby enabling the monitoring of the furnace flames.

[0029] In addition, an external viewing hole 17 is provided at the bottom of the front end of the pre-embedded pipe 1.

[0030] During normal operation, the piston rod of cylinder 2 extends, driving the protective tube 3 and the high-temperature lens 16 and the endoscope 4 at its front end forward until the protective tube 3 reaches its maximum stroke. At this time, the camera 4 captures images and videos of the inside of the furnace through the high-temperature lens 16 and the endoscope 4 at its front end, and through the endoscope 5 and endoscope 17, and transmits them to the display screen of the monitoring center for real-time display, so as to realize real-time monitoring of the combustion status of the furnace flame.

[0031] During this process, the steel wire 6 is squeezed by the bottom wall of the protective tube 3, and the springs 12 at both ends of the steel wire 6 are stretched downward.

[0032] When cooling is required, the piston rod of cylinder 2 retracts, driving the protective tube 3 and camera 4 to move backward. As the protective tube 3 is about to reach its maximum retraction stroke, the steel wire 6 scrapes away the crust formed on the lower edge of the endoscope hole 5 along the bottom wall of the protective tube 3.

[0033] When the protective tube 3 reaches the maximum retraction stroke, the steel wire 6 moves forward relative to the spherical surface at the front end of the protective tube 3, and the springs 12 at both ends of the steel wire 6 return to their original position upward.

[0034] At this time, outside air can be pumped into the air inlet 13 by the air pump to cool the endoscope 4 at the maximum retraction point.

[0035] After cooling, the piston rod of cylinder 2 extends again, driving the protective tube 3 and the high-temperature lens 16 and the endoscope 4 at its front end to move forward again until the protective tube 3 reaches its maximum stroke.

[0036] As the protective tube 3 is about to leave its maximum retraction position, the steel wire 6 is compressed and moves relatively backward along the spherical surface at the front end of the protective tube 3, while the springs 12 at both ends of the steel wire 6 are stretched downward again.

[0037] During the cooling process of the endoscope 4, the crust that is scraped off can be blown into the furnace through the external viewing hole 17 at the bottom of the front end of the pre-embedded pipe 1 under the action of airflow.

[0038] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0039] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A crust-removing structure for a furnace flame monitoring device, comprising an embedded pipe fixed to the furnace wall and extending into the furnace chamber, a cylinder connected to the embedded pipe, a protective pipe driven forward and backward by the cylinder, a high-temperature lens disposed inside the protective pipe, and a camera connected to the rear end of the high-temperature lens for monitoring the furnace flame, wherein an endoscope is provided at the bottom of the front end of the protective pipe, characterized in that: Inside the pre-embedded tube, a steel wire is elastically installed at the maximum retraction stroke of the protective tube. The steel wire is arranged laterally and is squeezed by the bottom wall of the protective tube. When the protective tube reaches the maximum retraction stroke, the steel wire scrapes away the crust formed at the lower edge of the endoscopic hole along the bottom wall of the protective tube.

2. The crust-removing structure of a furnace flame monitoring device according to claim 1, characterized in that: The bottom of the pre-embedded pipe has a notch at the maximum retraction point of the protective pipe.

3. The crust-removing structure of a furnace flame monitoring device according to claim 2, characterized in that: The bottom of the pre-embedded pipe is fixedly connected to horizontal pipes on both sides of the notch, and both ends of the horizontal pipes are fixedly connected to sealing plates, with connecting seats fixedly connected to the inner side of the sealing plates.

4. The scale removal structure of a furnace flame monitoring device according to claim 3, characterized in that: The steel wire passes through the notch laterally, and hooks are integrally connected to both ends of the steel wire. A spring is connected between the hooks on the same side and the connecting seat.

5. The crust-removing structure of a furnace flame monitoring device according to claim 3, characterized in that: The bottom of the horizontal tube is provided with an air inlet for blowing outside air into the interior of the pre-embedded tube to cool the endoscope at the front end of the high-temperature lens.

6. The crust-removing structure of a furnace flame monitoring device according to claim 1, characterized in that: The front ends of both the pre-embedded pipe and the protective pipe are spherical.

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