Sewage grid device convenient to install and clean grid slag

Abstract

The utility model provides a sewage grid device convenient to install and clean grid slag, which comprises an overflowing channel, two layers of grids, two sets of lifting devices, a water inlet liquid level meter, a water outlet liquid level meter and a control system, the grids are vertically arranged in parallel at intervals and are in sliding connection with the overflowing channel, net bag-shaped grids are arranged at the bottoms of the grids, and the net bag-shaped grids are connected with the lifting devices. The lifting devices are used for lifting the corresponding grids, the water inlet liquid level meters and the water outlet liquid level meters are arranged on the upstream portions and the downstream portions of the two layers of grids respectively and used for detecting the liquid level difference of the two sides of the grids, and the control system is used for pushing liquid level difference data to operators on duty. The device is provided with two layers of grilles with net bag-shaped grids, so that the device has high overflowing capacity, the regular cleaning time of the grilles can be prolonged, the slag blocking effect can be ensured, operation and maintenance personnel are pushed through a control system to give an alarm when the abnormal condition of an overflowing channel is judged, normalized operation in an unattended mode is realized, and the working efficiency is improved. The device has the characteristics of low energy consumption, low manufacturing cost, simple structure and convenience in maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage slag removal, in particular to a sewage grille device which is convenient for installation and cleaning of slag. Background Art

[0002] Domestic sewage contains a large amount of suspended or floating solid pollutants. Before sewage treatment, these solid pollutants must first be removed through pretreatment methods to avoid failures of lift pumps, mixers, etc. caused by suspension or floating, and to ensure the safe and stable operation of back-end systems and equipment facilities. Generally, solid pollutants in sewage are intercepted by setting screens.

[0003] At present, there are two main types of screens commonly used in domestic township and rural sewage treatment facilities. One is to use mechanical screens, but the construction area is large, the structure is complex, the construction and operation and maintenance costs are high, and the slag interception effect is average; the other is to use manual screens, mainly perforated plates (or mesh plates), but during the operation and maintenance process, there are problems such as untimely or ineffective cleaning of screen slag, which affects the flow capacity and leads to blockage of flow channels, sewage overflow, etc., and ultimately fails to effectively intercept suspended or floating materials, resulting in malfunctions of lifting pumps, mixers, etc., abnormalities in the sewage treatment system, and even environmental incidents. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sewage screen device that is easy to install and clean screen residue. In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A sewage screen device which is convenient for installation and cleaning of screen residues comprises a flow channel, two layers of screens, two sets of lifting devices, an inlet liquid level meter, an outlet liquid level meter and a control system. The screens are arranged in parallel with vertical intervals and are slidably connected to the flow channel. A net bag-shaped grid is arranged at the bottom of the screen. The lifting device is used to lift and lower the corresponding screen. The inlet liquid level meter and the outlet liquid level meter are respectively arranged at the upstream and downstream of the two layers of screens to detect the liquid level difference on both sides of the screen. The control system is used to push the liquid level difference data to the on-duty personnel.

[0006] Furthermore, a vertical slide groove is fixedly connected to the inner wall of the flow channel, and the grille is slidably arranged in the slide groove.

[0007] Furthermore, the lifting device includes a base, a folding rod, an electric hoist and a steel cable. The base is fixedly mounted on the flow channel, the folding rod is rotatably mounted on the base, a movable pulley is fixedly mounted on the top of the folding rod, the electric hoist is fixedly mounted on the folding rod, and the steel cable is passed through the movable pulley, one end of which is connected to the electric hoist, and the other end is fixedly connected to the grille.

[0008] Furthermore, the pore spacing of the upstream grille is greater than the pore spacing of the downstream grille.

[0009] Furthermore, a sloped baffle is fixedly provided at the bottom of the flow channel, and the baffle is located upstream of the grille and adjacent to the bottom of the grille.

[0010] Furthermore, the flow channel is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively slidably connected with a wall-attached gate, the top of the gate is rotatably connected with a connecting rod, the top of the connecting rod is provided with a thread, the connecting rod is connected to a lifter through a 90-degree intersecting bevel gear structure, and the lifter is used to lift the gate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The device is equipped with two layers of grilles with net-shaped grids with large flow capacity, which can extend the regular cleaning time of the grilles and ensure the slag interception effect; the liquid level height and overflow of the water pipe network are judged by monitoring the liquid level height by the liquid level gauge in front of the grille, and the liquid level height of the rear-end regulating tank and the blockage of the lifting pump are judged by the liquid level height of the liquid level gauge behind the grille; the abnormal situation of the flow channel is judged to push the alarm to the operation and maintenance personnel through the control system, so as to realize the normal operation of unmanned mode; it can be used for the front end of township sewage treatment facilities and rural sewage treatment facilities, and has the characteristics of low energy consumption, low cost, simple structure and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of a transverse cross-section structure of an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a 90-degree bevel gear of the utility model.

[0017] In the above drawings: flow channel 1, grille 2, grid 3, water inlet level gauge 4, water outlet level gauge 5, chute 6, base 7, folding rod 8, electric hoist 9, steel cable 10, baffle 11, water inlet 12, water outlet 13, gate 14, connecting rod 15, lifter 16, bevel gear structure 17. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Embodiment 1:

[0020] like Figure 1 , Figure 2 As shown, the utility model provides a technical solution, a sewage screen device which is easy to install and clean screen residue, comprising a flow channel 1, two layers of screens 2, two sets of lifting devices, an inlet liquid level meter 4, an outlet liquid level meter 5 and a control system, wherein the screens 2 are arranged in parallel with vertical intervals and are slidably connected to the flow channel 1, a net bag-shaped grid 3 is arranged at the bottom of the screen 2, the lifting device is used to lift and lower the corresponding screen 2, the inlet liquid level meter 4 and the outlet liquid level meter 5 are respectively arranged upstream and downstream of the two layers of screens 2 to detect the liquid level difference on both sides of the screen 2, the control system is used to push the liquid level difference data to the on-duty personnel, the control system sends the liquid level and liquid level difference information to the central control room, remotely alarms the central control room, and pushes text messages to remind the operation and maintenance personnel to clean the screen 2 in time.

[0021] The operation and maintenance principles are: 1. According to the flow conditions of the flow channel 1, set the liquid level warning value, and alarm the warning value on the centralized monitoring platform, and set the alarm value to the corresponding mobile phone number of the operation and maintenance personnel. When the liquid level is abnormal or the liquid level difference is abnormal, the centralized control center will alarm and send SMS to the on-duty personnel to remind them that they need to clean the grille 2; 2. The operation and maintenance personnel arrive at the scene, start the lifting device to lift the upstream grille 2 to the ground, intercept and clean the suspended or floating objects on the grille 2; 3. Reset the cleaned grille 2, or replace it with the same type of grille 2; 4. Start the lifting device to lift the downstream grille 2 to the ground, intercept and clean the suspended or floating objects on the grille 2; 5. Reset the cleaned grille 2, or replace it with the same type of grille 2; 6. Observe the operation effect of the flow channel 1 to check whether the liquid level is within the parameter range required for operation control.

[0022] In this embodiment, if Figure 1 , Figure 2 As shown, a vertical chute 6 is fixedly connected to the inner wall of the flow channel 1, and the grille 2 is slidably arranged in the chute 6. The chute 6 is used to limit the lifting and lowering grille 2, so that the grille 2 is stably lifted and reset, and is easy to use.

[0023] In this embodiment, if Figure 1 , Figure 2As shown, the lifting device includes a base 7, a folding rod 8, an electric hoist 9 and a steel cable 10. The base 7 is fixedly mounted on the flow channel 1, the folding rod 8 is rotatably mounted on the base 7, a movable pulley is fixedly mounted on the top of the folding rod 8, the electric hoist 9 is fixedly mounted on the folding rod 8, and the steel cable 10 is passed through the movable pulley, one end of which is connected to the electric hoist 9, and the other end is fixedly connected to the grille 2. After the grille 2 is lifted up by the electric hoist 9, the folding rod 8 is rotated on the base 7 to transfer the lifted grille 2 to the ground, so as to facilitate the cleaning of the dirt in the net-shaped grid 3, and the use is convenient.

[0024] Embodiment 2:

[0025] On the basis of Example 1, further, Figure 1 , Figure 2 As shown, the pore spacing of the upstream grille 2 is greater than the pore spacing of the downstream grille 2. The pore spacing of the upstream grille 2 is set to 10-30 mm, and the pore spacing of the downstream grille 2 is set to 3-5 mm, so as to improve the interception effect by intercepting suspended or floating objects in stages.

[0026] Embodiment 3:

[0027] On the basis of Example 1 or Example 2, further, as Figure 1 , Figure 2 As shown, a sloped baffle 11 is fixedly provided at the bottom of the flow channel 1, and the baffle 11 is located upstream of the grille 2 and adjacent to the bottom of the grille 2. The sloped baffle 11 allows the sediment at the bottom of the flow channel 1 to be flushed into the grille 2, thereby preventing dirt from settling at the bottom of the flow channel 1.

[0028] Embodiment 4:

[0029] On the basis of Example 1 or Example 2 or Example 3, further, as Figure 1 , Figure 2 As shown, the flow channel 1 is provided with a water inlet 12 and a water outlet 13, and the water inlet 12 and the water outlet 13 are respectively slidably connected with a wall-attached gate 14, and the top of the gate 14 is rotatably connected with a connecting rod 15, and the top of the connecting rod 15 is provided with a thread, and the connecting rod 15 is connected to a lifter 16 through a 90-degree angle bevel gear structure 17, as shown in FIG. Figure 3 As shown, the lifter 16 is used to lift the gate 14. By rotating the lifter 16 to lift the gate 14, it is convenient for the operation and maintenance personnel to clean the flow channel 1 after closing the gate 14.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A sewage screen device that is easy to install and clean screen residue, characterized in that: It includes a flow channel, two layers of grilles, two sets of lifting devices, a water inlet level meter, a water outlet level meter and a control system. The grilles are arranged in parallel with vertical intervals and are slidably connected to the flow channel. A net bag-shaped grid is arranged at the bottom of the grille. The lifting device is used to lift and lower the corresponding grille. The water inlet level meter and the water outlet level meter are respectively arranged upstream and downstream of the two layers of grilles to detect the liquid level difference on both sides of the grille. The control system is used to push the liquid level difference data to the on-duty personnel.

2. A sewage screen device that is easy to install and clean screen residue according to claim 1, characterized in that: A vertical slide groove is fixedly connected to the inner wall of the flow channel, and the grille is slidably arranged in the slide groove.

3. A sewage screen device that is easy to install and clean screen residue as claimed in claim 1, characterized in that: The lifting device includes a base, a folding rod, an electric hoist and a steel cable. The base is fixedly installed on the flow channel, the folding rod is rotatably installed on the base, a movable pulley is fixedly installed on the top of the folding rod, the electric hoist is fixedly installed on the folding rod, and the steel cable is passed through the movable pulley, one end of which is connected to the electric hoist, and the other end is fixedly connected to the grille.

4. A sewage screen device that is easy to install and clean screen residue as claimed in claim 1, characterized in that: The pore spacing of the upstream grid is larger than the pore spacing of the downstream grid.

5. A sewage screen device that is easy to install and clean screen residue as claimed in claim 1, characterized in that: A sloped baffle is fixedly arranged at the bottom of the flow channel, and the baffle is located upstream of the grille and adjacent to the bottom of the grille.

6. A sewage screen device that is easy to install and clean screen residue as claimed in claim 1, characterized in that: The flow channel is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively slidably connected with a wall-attached gate. The top of the gate is rotatably connected with a connecting rod, and the top of the connecting rod is provided with a thread. The connecting rod is connected to a lifter through a 90-degree bevel gear structure, and the lifter is used to lift the gate.

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