Device for producing carbon source through hydrolysis

Abstract

The utility model discloses a device for producing a carbon source through hydrolysis. The device comprises a hydrolysis tank, a feed port, a discharge port, a discharge hole, an annular steam pipe assembly, a scraping type double-layer stirring device, a level meter, a pH meter, an alkali adding pipe, an exhaust pipe, a pressure gauge and a thermometer, wherein a feed port is formed in the upper part of one side of the hydrolysis tank, a discharge port is formed in the lower part of the other side of the hydrolysis tank, and a discharge hole is formed in the bottom of the hydrolysis tank; the annular steam pipe assembly is arranged in the hydrolysis tank and located at the bottom in the hydrolysis tank; the scraping type double-layer stirring device is arranged in the hydrolysis tank from top to bottom and can be used for stirring in the hydrolysis tank and scraping materials at the bottom in the hydrolysis tank; a level meter, a pH meter, an alkali adding pipe, an exhaust pipe and a pressure gauge are respectively arranged at the top of the hydrolysis tank; and a thermometer is arranged on the side wall of the hydrolysis tank. The device can effectively prevent materials from hardening and sinking to the bottom, the mixing and heating effects of the whole tank are improved, and the mass transfer efficiency and the hydrolysis effect of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a device for producing carbon sources by hydrolysis. Background Art

[0002] At present, as the total nitrogen standard of effluent from urban sewage treatment plants is increasing, the biological denitrification process requires the participation of a carbon source. The carbon source in the raw water is often limited, and an external carbon source needs to be added for biological denitrification. The organic matter that can be directly used by microorganisms mainly includes formic acid, methanol and acetic acid. Conventional external carbon sources mainly include methanol, sodium acetate, glucose, etc., which have problems such as high operating costs.

[0003] Grain is a typical organic mixture that can generate small molecule carbon sources through hydrolysis. If waste grain can be used to produce carbon sources, the carbon source cost of water treatment will be reduced. However, traditional hydrolysis devices have problems such as solid materials easily depositing at the bottom, uneven stirring, and difficulty in compacting and discharging bottom materials. They are unable to effectively use waste grain to produce carbon sources.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The utility model aims to provide a device for producing carbon sources by hydrolysis, which can utilize waste food to effectively produce carbon sources, thereby solving the above-mentioned technical problems existing in the prior art.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A device for producing a carbon source by hydrolysis, comprising:

[0008] Hydrolysis tank, feed port, discharge port, discharge hole, annular steam pipe assembly, scraper-type double-layer stirring device, level meter, pH meter, alkali adding pipe, exhaust pipe, pressure gauge and thermometer; among which,

[0009] A feed inlet is arranged at the upper part of one side of the hydrolysis tank, a discharge outlet is arranged at the lower part of the other side, and a discharge hole is arranged at the bottom of the hydrolysis tank;

[0010] The annular steam pipe assembly is arranged in the hydrolysis tank and is located at the bottom of the hydrolysis tank;

[0011] The scraping double-layer stirring device is arranged in the hydrolysis tank from top to bottom, and can stir the hydrolysis tank and scrape the bottom of the hydrolysis tank;

[0012] A level meter, a pH meter, an alkali adding pipe, an exhaust pipe and a pressure gauge are respectively arranged on the top of the hydrolysis tank;

[0013] A thermometer is arranged on the side wall of the hydrolysis tank.

[0014] Compared with the prior art, the hydrolysis carbon source production device provided by the utility model has the following beneficial effects:

[0015] By setting up a scraper-type double-layer stirring device, the material can be fully stirred during the hydrolysis process in the hydrolysis tank, and the material on the inner wall of the hydrolysis tank can be scraped off. In combination with the annular steam pipe assembly, the material can be concentrated to the middle part of the bottom of the hydrolysis tank under the action of steam, thereby solving the problems of solid material easily deposited at the bottom, uneven stirring, and difficulty in compacting and discharging the bottom material in the traditional hydrolysis device, thereby improving the efficiency and effect of utilizing waste food to produce carbon sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the hydrolysis carbon source production device provided in Example 1 of the utility model.

[0018] Figure 2 This is a top view schematic diagram of the annular steam pipe assembly of the hydrolysis carbon source production device provided in Example 1 of the utility model.

[0019] Figure 3 A schematic diagram of the steam holes of the device for producing carbon sources by hydrolysis provided in an embodiment of the utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the hydrolysis carbon source production device provided in Example 2 of the utility model.

[0021] In the figure: 1-feeding port; 2-hydrolysis tank; 3-discharging port; 4-top cover; 5-level meter; 6-PH meter; 7-alkali adding pipe; 8-exhaust pipe; 9-pressure gauge; 10-annular steam pipe; 11-steam hole; 12-steam inlet pipe; 13-connecting fixture; 14-thermometer; 15-scraping type double-layer stirring device; 16-reduction driving device; 17-first layer stirring blade; 18-scraping device; 19-manhole for maintenance; 20-discharging hole; 21-discharging hole gate; 22-support leg; 23-mobile storage tank; 24-rotating roller; 25-brush; 26-second layer stirring blade. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, not all of the embodiments, which does not constitute a limitation of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0023] First, the terms that may be used in this article are explained as follows:

[0024] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0025] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0026] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than the technical feature elements explicitly listed, except for the conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in the clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0027] Unless otherwise specified or 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0028] The orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience and simplification of description, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation of this document.

[0029] The scheme provided by the utility model is described in detail below. The contents not described in detail in the embodiments of the utility model belong to the prior art known to professional and technical personnel in the field. If no specific conditions are specified in the embodiments of the utility model, the conditions are carried out according to the conventional conditions in the field or the conditions recommended by the manufacturer. If the manufacturers of the reagents or instruments used in the embodiments of the utility model are not specified, they are all conventional products that can be purchased commercially.

[0030] like Figure 1 As shown, the embodiment of the utility model provides a device for producing a carbon source by hydrolysis, comprising:

[0031] Hydrolysis tank, feed port, discharge port, discharge hole, annular steam pipe assembly, scraper-type double-layer stirring device, level meter, pH meter, alkali adding pipe, exhaust pipe, pressure gauge and thermometer; among which,

[0032] A feed inlet is arranged at the upper part of one side of the hydrolysis tank, a discharge outlet is arranged at the lower part of the other side, and a discharge hole is arranged at the bottom of the hydrolysis tank;

[0033] The annular steam pipe assembly is arranged in the hydrolysis tank and is located at the bottom of the hydrolysis tank;

[0034] The scraping double-layer stirring device is arranged in the hydrolysis tank from top to bottom, and can stir the hydrolysis tank and scrape the bottom of the hydrolysis tank;

[0035] A level meter, a pH meter, an alkali adding pipe, an exhaust pipe and a pressure gauge are respectively arranged on the top of the hydrolysis tank;

[0036] A thermometer is arranged on the side wall of the hydrolysis tank.

[0037] Preferably, the device further comprises: a movable storage tank, which is arranged below the discharge hole, so as to facilitate the discharge of waste.

[0038] See also Figure 2 Preferably, in the above device, the annular steam pipe assembly comprises:

[0039] Two steam inlet pipes, a plurality of connecting fixtures and a circular steam pipe; wherein,

[0040] The annular steam pipe is arranged at the bottom of the hydrolysis tank close to the tank wall;

[0041] Two steam introduction pipes are installed on the side wall of the hydrolysis tank from top to bottom through a plurality of connecting and fixing parts, and the bottom ends of the two steam introduction pipes are connected to the annular steam pipe.

[0042] Preferably, in the above device, a plurality of steam holes inclined downward are evenly spaced and arranged on the annular steam pipe.

[0043] See also Figure 3 Preferably, in the above device, the angle between the opening direction of each steam hole and the vertical direction is 45 degrees.

[0044] See also Figure 1 Preferably, in the above device, the scraper-type double-layer stirring device comprises: a reduction drive device, a first-layer stirring blade, a second-layer stirring blade and a scraper device; wherein,

[0045] The deceleration drive device is arranged on the top of the hydrolysis tank, and the driving shaft of the deceleration drive device extends into the hydrolysis tank from top to bottom. The driving shaft is sequentially provided with the first layer of stirring blades, the second layer of stirring blades and the scraping device from top to bottom, and the scraping device is located at the bottom of the hydrolysis tank.

[0046] The scraping double-layer stirring device of this structure can better stir the materials in the hydrolysis tank and scrape off the materials deposited at the bottom during stirring, thereby avoiding the compaction of the materials at the bottom of the hydrolysis tank and affecting the hydrolysis effect.

[0047] See also Figure 4 Preferably, in the above device, the scraper-type double-layer stirring device further comprises:

[0048] Two groups of brushes, one group of brushes is arranged at the outer end of the first layer of stirring blades, and the other group of brushes is arranged at the outer end of the second layer of stirring blades.

[0049] By arranging brushes at the outer ends of the first layer of stirring blades and the second layer of stirring blades, materials attached to the inner wall of the hydrolysis tank can be removed during stirring, thereby avoiding compaction of materials and affecting the hydrolysis effect.

[0050] Preferably, the device further comprises: a discharge hole gate, which is arranged on the discharge hole, so as to facilitate the control of discharge.

[0051] Preferably, in the above device, the hydrolysis tank comprises: a tank body, a top cover and a plurality of legs; wherein,

[0052] The tank body is a cylindrical structure with a conical bottom;

[0053] A maintenance manhole is provided on the side wall of the tank body;

[0054] A plurality of supporting legs are arranged at the bottom of the tank body;

[0055] The top cover is buckled on the top opening of the tank body, and the level meter, pH meter, alkali adding pipe, exhaust pipe and pressure gauge are all arranged on the top cover.

[0056] Preferably, the device further comprises: a control device, which is electrically connected to the level meter, pH meter, pressure gauge and thermometer respectively, and can control the feed amount, alkali addition amount, exhaust amount and temperature of the hydrolysis tank according to the signals of the level meter, pH meter, pressure gauge and thermometer respectively. The feed amount, alkali addition amount, exhaust amount and temperature of the hydrolysis tank can be conveniently controlled by the control device to improve the hydrolysis effect.

[0057] In order to more clearly demonstrate the technical solution and technical effects provided by the present invention, the solution provided by the embodiments of the present invention is described in detail with specific embodiments below.

[0058] Example 1

[0059] This embodiment provides a device for producing carbon source by hydrolysis, the structure of which is as follows Figure 1 As shown, the hydrolysis carbon source production process of the hydrolysis carbon source production device is as follows:

[0060] The wet material flows into the hydrolysis tank 2 from the feed port 1, and a hydrolysis reaction occurs in the hydrolysis tank 2. After the hydrolysis is completed, the material flows out of the hydrolysis tank from the discharge port 3. A top cover 4 is provided on the top of the hydrolysis tank, and a level meter 5 is provided on the top cover 4. The feed amount can be controlled according to the data of the level meter 5. A pH meter 6 and an alkali adding tube 7 are provided on the top cover 4, and the alkali adding amount is calculated and fed back according to the pH signal. An exhaust pipe 8 and a pressure gauge 9 are provided on the top cover 4. The gas generated in the hydrolysis tank 2 is discharged from the exhaust pipe. When the pressure in the hydrolysis tank 2 is too high, the pressure gauge alarms.

[0061] A circular steam pipe 10 is provided at the bottom of the hydrolysis tank 2 near the tank wall, and a plurality of steam holes 11 are provided on the circular steam pipe 10 obliquely downward (see Figure 2 ), blow the materials around the bottom of the hydrolysis tank 2 toward the center. Figure 3 The steam hole 11 of the annular steam pipe 10 is directed downward, with an angle of 45 degrees with the vertical direction. Two steam introduction pipes 12 are provided on the annular steam pipe 10 to prevent local blockage of the annular steam pipe. Three connection fixings 13 are provided between each steam introduction pipe 12 and the wall of the hydrolysis tank. Two sets of thermometers 14 are provided on the opposite side wall of the hydrolysis tank 2, which can adjust the steam volume according to the temperature signal, can effectively monitor the reaction temperature in the device, and prevent the problem of excessive or insufficient temperature.

[0062] A scraper-type double-layer stirring device 15 is provided in the middle of the hydrolysis tank 2, and a reduction drive device 16 composed of a motor and a reducer is provided on the outside of the top cover 4. The driving shaft of the reduction drive device 16 extends into the hydrolysis tank 2 from top to bottom. The driving shaft is provided with a first-layer stirring blade 17, a second-layer stirring blade 26 and a scraper device 18 in sequence from top to bottom. The scraper device 18 is located at the bottom of the hydrolysis tank 2. The first-layer stirring blade 17, the second-layer stirring blade 26 and the scraper device 18 can effectively stir the materials in the whole tank. The scraper-type double-layer stirring and steam work together to strengthen the mixing of the materials and steam, and the materials are heated evenly without dead zones.

[0063] The side wall of the hydrolysis tank 2 is provided with an inspection manhole 19, and the bottom is provided with an openable discharge hole 20. After running for a period of time, the discharge hole gate 21 can be opened to empty the material in the tank. The lower end of the hydrolysis tank 2 is provided with a support leg 22, and a mobile storage tank 23 is provided just below the discharge hole 20. The emptied material falls into the mobile storage tank 23. A rotating roller 24 is provided under the mobile storage tank 23 to facilitate pulling out the storage tank.

[0064] Example 2

[0065] This embodiment provides a device for producing carbon source by hydrolysis, as a variation of embodiment 1, the structure of which is shown in FIG. Figure 4 , which is mainly different from Example 1 in that:

[0066] The outer ends of the first layer of stirring blades 17 and the outer ends of the second layer of stirring blades 26 are both provided with brushes 25, which can brush the materials adhering to the inner wall of the hydrolysis tank into the tank.

[0067] Specific use process: wet material flows into the hydrolysis tank 2 from the feed port 1, and a hydrolysis reaction occurs in the hydrolysis tank 2. After the hydrolysis is completed, the material flows out of the hydrolysis tank from the discharge port 3. During the reaction process, the scraper-type double-layer stirring device 15 rotates to drive the first-layer stirring blades 17 and the second-layer stirring blades 26, the brush 25 and the scraper device 18 at the bottom to stir the materials in the whole tank. The annular steam pipe 10 at the bottom of the hydrolysis tank 2 blows the materials around the bottom of the tank toward the center of the bottom of the tank. The stirring, scraping, brushing and steam work together to strengthen the mixing of the materials and steam in the whole tank, which can effectively prevent the materials from compacting and sinking to the bottom, increase the mixing and heating effects of the whole tank, and improve the mass transfer efficiency and hydrolysis effect of the device.

[0068] There are two sets of thermometers on the opposite side wall of the hydrolysis tank, which can adjust the steam volume according to the temperature signal, effectively monitor the reaction temperature in the device and prevent problems such as over-high or insufficient temperature.

[0069] Open the discharge gate at the bottom of the hydrolysis tank to drain the material in the tank, and the drained material falls into the mobile storage tank, making it easy to drain the material.

[0070] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims. The information disclosed in the background technology section of this article is only intended to deepen the understanding of the overall background technology of the utility model, and should not be regarded as an admission or in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. A device for producing carbon source by hydrolysis, characterized in that: include: Hydrolysis tank, feed port, discharge port, discharge hole, annular steam pipe assembly, scraper-type double-layer stirring device, level meter, pH meter, alkali adding pipe, exhaust pipe, pressure gauge and thermometer; among which, A feed inlet is arranged at the upper part of one side of the hydrolysis tank, a discharge outlet is arranged at the lower part of the other side, and a discharge hole is arranged at the bottom of the hydrolysis tank; The annular steam pipe assembly is arranged in the hydrolysis tank and is located at the bottom of the hydrolysis tank; The scraping double-layer stirring device is arranged in the hydrolysis tank from top to bottom, and can stir the hydrolysis tank and scrape the bottom of the hydrolysis tank; A level meter, a pH meter, an alkali adding pipe, an exhaust pipe and a pressure gauge are respectively arranged on the top of the hydrolysis tank; A thermometer is arranged on the side wall of the hydrolysis tank.

2. The device for producing carbon source by hydrolysis according to claim 1, characterized in that: Also includes: The movable storage tank is arranged below the discharge hole.

3. The device for producing carbon source by hydrolysis according to claim 1 or 2, characterized in that: The annular steam pipe assembly comprises: Two steam inlet pipes, a plurality of connecting fixtures and a circular steam pipe; wherein, The annular steam pipe is arranged at the bottom of the hydrolysis tank close to the tank wall; Two steam introduction pipes are installed on the side wall of the hydrolysis tank from top to bottom through a plurality of connecting and fixing parts, and the bottom ends of the two steam introduction pipes are connected to the annular steam pipe.

4. The device for producing carbon source by hydrolysis according to claim 3, characterized in that: The annular steam pipe is evenly and spacedly provided with a plurality of steam holes which are inclined downward.

5. The device for producing carbon source by hydrolysis according to claim 4, characterized in that: The angle between the opening direction of each steam hole and the vertical direction is 45 degrees.

6. The device for producing carbon source by hydrolysis according to claim 1 or 2, characterized in that: The scraper-type double-layer stirring device comprises: A reduction drive device, a first-layer stirring blade, a second-layer stirring blade and a scraping device; wherein, The deceleration drive device is arranged on the top of the hydrolysis tank, and the driving shaft of the deceleration drive device extends into the hydrolysis tank from top to bottom. The driving shaft is sequentially provided with the first layer of stirring blades, the second layer of stirring blades and the scraping device from top to bottom, and the scraping device is located at the bottom of the hydrolysis tank.

7. The device for producing carbon source by hydrolysis according to claim 6, characterized in that: The scraper-type double-layer stirring device also includes: Two groups of brushes, one group of brushes is arranged at the outer end of the first layer of stirring blades, and the other group of brushes is arranged at the outer end of the second layer of stirring blades.

8. The device for producing carbon source by hydrolysis according to claim 1 or 2, characterized in that: Also includes: The discharge hole gate is arranged on the discharge hole.

9. The device for producing carbon source by hydrolysis according to claim 1 or 2, characterized in that: The hydrolysis tank comprises: a tank body, a top cover and a plurality of legs; wherein, The tank body is a cylindrical structure with a conical bottom; A maintenance manhole is provided on the side wall of the tank body; A plurality of supporting legs are arranged at the bottom of the tank body; The top cover is buckled on the top opening of the tank body, and the level meter, pH meter, alkali adding pipe, exhaust pipe and pressure gauge are all arranged on the top cover.

10. The device for producing carbon source by hydrolysis according to claim 1 or 2, characterized in that: Also includes: The control device is electrically connected to the level meter, pH meter, pressure gauge and thermometer respectively, and can control the feed amount, alkali addition amount, exhaust amount and temperature of the hydrolysis tank according to the signals of the level meter, pH meter, pressure gauge and thermometer respectively.

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